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Finding the Fourth Proportional to 137,139.39, 205,635.11 and 62,218.65

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Solution

The fourth proportional to 137,139.39, 205,635.11 and 62,218.65 is: 93,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,139.39 : 205,635.11 = 62,218.65 : x
  2. Step 2: Convert to fraction form
    137,139.39/205,635.11 = 62,218.65/x
  3. Step 3: Cross multiply
    137,139.39x = 205,635.11 × 62,218.65
  4. Step 4: Simplify right side
    137,139.39x = 12,794,339,477.91
  5. Step 5: Solve for x
    x = 12,794,339,477.91/137,139.39
  6. Step 6: Final answer
    x = 93,294.42

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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.