Home / 138,481.95-207,757.89-38,642.06

Finding the Fourth Proportional to 138,481.95, 207,757.89 and 38,642.06

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Solution

The fourth proportional to 138,481.95, 207,757.89 and 38,642.06 is: 57,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,481.95 : 207,757.89 = 38,642.06 : x
  2. Step 2: Convert to fraction form
    138,481.95/207,757.89 = 38,642.06/x
  3. Step 3: Cross multiply
    138,481.95x = 207,757.89 × 38,642.06
  4. Step 4: Simplify right side
    138,481.95x = 8,028,193,261.57
  5. Step 5: Solve for x
    x = 8,028,193,261.57/138,481.95
  6. Step 6: Final answer
    x = 57,972.85

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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.