Home / 138,234.75-207,386.19-44,740.50

Finding the Fourth Proportional to 138,234.75, 207,386.19 and 44,740.50

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Solution

The fourth proportional to 138,234.75, 207,386.19 and 44,740.50 is: 67,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,234.75 : 207,386.19 = 44,740.50 : x
  2. Step 2: Convert to fraction form
    138,234.75/207,386.19 = 44,740.50/x
  3. Step 3: Cross multiply
    138,234.75x = 207,386.19 × 44,740.50
  4. Step 4: Simplify right side
    138,234.75x = 9,278,561,833.70
  5. Step 5: Solve for x
    x = 9,278,561,833.70/138,234.75
  6. Step 6: Final answer
    x = 67,121.78

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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.