How do you find two geometric means between 5 and 135?
1 Answer
Nov 25, 2015
We are effectively looking for
This sequence has common ratio
Explanation:
In a geometric sequence, each intermediate term is the geometric mean of the term before it and the term after it.
So we want to find
If the common ratio is
#a = 5r#
#b = ar = 5r^2#
#135 = br = 5r^3#
Hence
Then