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Finding the Fourth Proportional to 157,429.68, 217,253.01 and 89,446.74

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Solution

The fourth proportional to 157,429.68, 217,253.01 and 89,446.74 is: 123,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,429.68 : 217,253.01 = 89,446.74 : x
  2. Step 2: Convert to fraction form
    157,429.68/217,253.01 = 89,446.74/x
  3. Step 3: Cross multiply
    157,429.68x = 217,253.01 × 89,446.74
  4. Step 4: Simplify right side
    157,429.68x = 19,432,572,413.42
  5. Step 5: Solve for x
    x = 19,432,572,413.42/157,429.68
  6. Step 6: Final answer
    x = 123,436.53

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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.