# 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