Home / 137,414.15-205,771.30-90,524.87

Finding the Fourth Proportional to 137,414.15, 205,771.30 and 90,524.87

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Solution

The fourth proportional to 137,414.15, 205,771.30 and 90,524.87 is: 135,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,414.15 : 205,771.30 = 90,524.87 : x
  2. Step 2: Convert to fraction form
    137,414.15/205,771.30 = 90,524.87/x
  3. Step 3: Cross multiply
    137,414.15x = 205,771.30 × 90,524.87
  4. Step 4: Simplify right side
    137,414.15x = 18,627,419,729.61
  5. Step 5: Solve for x
    x = 18,627,419,729.61/137,414.15
  6. Step 6: Final answer
    x = 135,556.78

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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.