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Finding the Fourth Proportional to 157,737.20, 217,674.48 and 89,752.70

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Solution

The fourth proportional to 157,737.20, 217,674.48 and 89,752.70 is: 123,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,737.20 : 217,674.48 = 89,752.70 : x
  2. Step 2: Convert to fraction form
    157,737.20/217,674.48 = 89,752.70/x
  3. Step 3: Cross multiply
    157,737.20x = 217,674.48 × 89,752.70
  4. Step 4: Simplify right side
    157,737.20x = 19,536,872,301.10
  5. Step 5: Solve for x
    x = 19,536,872,301.10/157,737.20
  6. Step 6: Final answer
    x = 123,857.10

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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.