B (1) = -54

b (n) = b (n-1) 4/3

What is the 4th term

-128

Step-by-step explanation:

Evaluate the recursive relation 3 times:

b (2) = b (1) 4/3 = (4/3) (-54) = - 72

b (3) = b (2) 4/3 = (4/3) (-72) = - 96

b (4) = b (3) 4/3 = (4/3) (-96) = - 128

The fourth term is - 128.