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Finding the Fourth Proportional to 157,606.02, 217,502.40 and 89,629.20

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Solution

The fourth proportional to 157,606.02, 217,502.40 and 89,629.20 is: 123,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,606.02 : 217,502.40 = 89,629.20 : x
  2. Step 2: Convert to fraction form
    157,606.02/217,502.40 = 89,629.20/x
  3. Step 3: Cross multiply
    157,606.02x = 217,502.40 × 89,629.20
  4. Step 4: Simplify right side
    157,606.02x = 19,494,565,022.57
  5. Step 5: Solve for x
    x = 19,494,565,022.57/157,606.02
  6. Step 6: Final answer
    x = 123,691.76

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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.