Home / 165,218.78-247,691.28-137,061.02

Finding the Fourth Proportional to 165,218.78, 247,691.28 and 137,061.02

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Solution

The fourth proportional to 165,218.78, 247,691.28 and 137,061.02 is: 205,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,218.78 : 247,691.28 = 137,061.02 : x
  2. Step 2: Convert to fraction form
    165,218.78/247,691.28 = 137,061.02/x
  3. Step 3: Cross multiply
    165,218.78x = 247,691.28 × 137,061.02
  4. Step 4: Simplify right side
    165,218.78x = 33,948,819,481.91
  5. Step 5: Solve for x
    x = 33,948,819,481.91/165,218.78
  6. Step 6: Final answer
    x = 205,477.97

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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.