Home / 157,341.28-217,136.16-89,361.16

Finding the Fourth Proportional to 157,341.28, 217,136.16 and 89,361.16

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Solution

The fourth proportional to 157,341.28, 217,136.16 and 89,361.16 is: 123,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,341.28 : 217,136.16 = 89,361.16 : x
  2. Step 2: Convert to fraction form
    157,341.28/217,136.16 = 89,361.16/x
  3. Step 3: Cross multiply
    157,341.28x = 217,136.16 × 89,361.16
  4. Step 4: Simplify right side
    157,341.28x = 19,403,539,135.55
  5. Step 5: Solve for x
    x = 19,403,539,135.55/157,341.28
  6. Step 6: Final answer
    x = 123,321.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.