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Finding the Fourth Proportional to 187,879.92, 281,737.96 and 71,062

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Solution

The fourth proportional to 187,879.92, 281,737.96 and 71,062 is: 106,562.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,879.92 : 281,737.96 = 71,062 : x
  2. Step 2: Convert to fraction form
    187,879.92/281,737.96 = 71,062/x
  3. Step 3: Cross multiply
    187,879.92x = 281,737.96 × 71,062
  4. Step 4: Simplify right side
    187,879.92x = 20,020,862,913.52
  5. Step 5: Solve for x
    x = 20,020,862,913.52/187,879.92
  6. Step 6: Final answer
    x = 106,562.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.