Sunshine Honda sold 112 cars this month. If that is 40% greater than last month, how many cars were sold last month? which ratio do I do this under? For example Portion=Rate x Base
To find the number of cars sold last month, we can set up a proportion using the information given. Let's denote the number of cars sold last month as "x".
The proportion we can set up is:
(112 cars) / (x cars) = (140%) / (100%)
Here, we set up the ratio between the number of cars sold this month (112 cars) and the number of cars sold last month (x cars), which should be equal to the percentage increase of 40% (140% expressed as a decimal) relative to a base value of 100%.
Now, cross-multiply and solve for 'x':
(112 cars) * (100%) = (x cars) * (140%)
112 = 1.4x
Divide both sides of the equation by 1.4 to isolate 'x':
112 / 1.4 = x
x ≈ 80
Therefore, approximately 80 cars were sold last month by Sunshine Honda.