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Finding the Fourth Proportional to 157,545.72, 217,485.90 and 97,127.16

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Solution

The fourth proportional to 157,545.72, 217,485.90 and 97,127.16 is: 134,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,545.72 : 217,485.90 = 97,127.16 : x
  2. Step 2: Convert to fraction form
    157,545.72/217,485.90 = 97,127.16/x
  3. Step 3: Cross multiply
    157,545.72x = 217,485.90 × 97,127.16
  4. Step 4: Simplify right side
    157,545.72x = 21,123,787,807.04
  5. Step 5: Solve for x
    x = 21,123,787,807.04/157,545.72
  6. Step 6: Final answer
    x = 134,080.37

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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.