What are the next four terms in the following geometric sequence?

5, 15, 45,…

**Solution:-**

First we are find common ratio = 3

In geometric sequence we have to find the next number by multiply last number to common ratio.

45*3 = 135

135 * 3 = 405

405*3 = 1215

1215*3 = 3645

So the next four terms are 135, 405, 1215, 3645