Home / 138,166.34-207,249.48-49,414.46

Finding the Fourth Proportional to 138,166.34, 207,249.48 and 49,414.46

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Solution

The fourth proportional to 138,166.34, 207,249.48 and 49,414.46 is: 74,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,166.34 : 207,249.48 = 49,414.46 : x
  2. Step 2: Convert to fraction form
    138,166.34/207,249.48 = 49,414.46/x
  3. Step 3: Cross multiply
    138,166.34x = 207,249.48 × 49,414.46
  4. Step 4: Simplify right side
    138,166.34x = 10,241,121,139.48
  5. Step 5: Solve for x
    x = 10,241,121,139.48/138,166.34
  6. Step 6: Final answer
    x = 74,121.68

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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.