Home / 99,740.22-149,520.17-67,729.97

Finding the Fourth Proportional to 99,740.22, 149,520.17 and 67,729.97

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Solution

The fourth proportional to 99,740.22, 149,520.17 and 67,729.97 is: 101,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740.22 : 149,520.17 = 67,729.97 : x
  2. Step 2: Convert to fraction form
    99,740.22/149,520.17 = 67,729.97/x
  3. Step 3: Cross multiply
    99,740.22x = 149,520.17 × 67,729.97
  4. Step 4: Simplify right side
    99,740.22x = 10,126,996,289.85
  5. Step 5: Solve for x
    x = 10,126,996,289.85/99,740.22
  6. Step 6: Final answer
    x = 101,533.73

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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.