Home / 138,770.39-207,937.56-107,257.61

Finding the Fourth Proportional to 138,770.39, 207,937.56 and 107,257.61

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Solution

The fourth proportional to 138,770.39, 207,937.56 and 107,257.61 is: 160,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,770.39 : 207,937.56 = 107,257.61 : x
  2. Step 2: Convert to fraction form
    138,770.39/207,937.56 = 107,257.61/x
  3. Step 3: Cross multiply
    138,770.39x = 207,937.56 × 107,257.61
  4. Step 4: Simplify right side
    138,770.39x = 22,302,886,636.89
  5. Step 5: Solve for x
    x = 22,302,886,636.89/138,770.39
  6. Step 6: Final answer
    x = 160,717.90

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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.