MATH
posted by SHERYL .
PLEASE EXPLAIN HOW TO FIND THE COMMON RATIO FOR THE GEOMETRIC SEQUENCE
16, 40. 100,____, ____
AND
81,54, ______,______,______

40/16=2.5
100/4=2.5
2.5*100=250
250*2.5=625
16,40,100,250,625
81/54=1.5
81*1.5=121.5
121.5*1.5=182.25
182.25*1.5=273.375
81,54,121.5,182.25,273.375