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Finding the Fourth Proportional to 138,000.92, 207,081.70 and 58,033.10

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Solution

The fourth proportional to 138,000.92, 207,081.70 and 58,033.10 is: 87,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,000.92 : 207,081.70 = 58,033.10 : x
  2. Step 2: Convert to fraction form
    138,000.92/207,081.70 = 58,033.10/x
  3. Step 3: Cross multiply
    138,000.92x = 207,081.70 × 58,033.10
  4. Step 4: Simplify right side
    138,000.92x = 12,017,593,004.27
  5. Step 5: Solve for x
    x = 12,017,593,004.27/138,000.92
  6. Step 6: Final answer
    x = 87,083.43

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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.