Posted by **Shin** on Saturday, June 22, 2013 at 3:08am.

5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression?

Note: The phrase "form an arithmetic progression" means that the values are consecutive terms of an arithmetic progression. Similarly, "form a geometric progression" means that the values are consecutive terms of a geometric progression.

- Math (Geometric Progression) -
**Promise**, Wednesday, November 26, 2014 at 6:58am
U5=a t(n-1)d

- Math (Geometric Progression) -
**Anonymous**, Friday, March 20, 2015 at 3:06pm
123

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