Answer
The common ratio is -2.5.
The next three numbers in the sequence are 312.5, -781.25, 1953.125
Work Step by Step
The common ratio is -2.5 because each number in the sequence is -2.5 times more than the number before. In other words, each number in the sequence is multiplied by -2.5.
To find the next three numbers, simply multiply the last known number by -2.5 and then continue the pattern:
-125 x -2.5 = 312.5
312.5 x -2.5 = -781.25
-781.25 x -2.5 = 1953.125
