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Finding the Fourth Proportional to 137,139.61, 205,635.44 and 62,218.87

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Solution

The fourth proportional to 137,139.61, 205,635.44 and 62,218.87 is: 93,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,139.61 : 205,635.44 = 62,218.87 : x
  2. Step 2: Convert to fraction form
    137,139.61/205,635.44 = 62,218.87/x
  3. Step 3: Cross multiply
    137,139.61x = 205,635.44 × 62,218.87
  4. Step 4: Simplify right side
    137,139.61x = 12,794,404,708.75
  5. Step 5: Solve for x
    x = 12,794,404,708.75/137,139.61
  6. Step 6: Final answer
    x = 93,294.74

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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.