Home / 138,257.30-207,385.82-38,417.44

Finding the Fourth Proportional to 138,257.30, 207,385.82 and 38,417.44

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Solution

The fourth proportional to 138,257.30, 207,385.82 and 38,417.44 is: 57,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,257.30 : 207,385.82 = 38,417.44 : x
  2. Step 2: Convert to fraction form
    138,257.30/207,385.82 = 38,417.44/x
  3. Step 3: Cross multiply
    138,257.30x = 207,385.82 × 38,417.44
  4. Step 4: Simplify right side
    138,257.30x = 7,967,232,296.70
  5. Step 5: Solve for x
    x = 7,967,232,296.70/138,257.30
  6. Step 6: Final answer
    x = 57,626.12

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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.