Home / 99,373.20-137,122.55-67,177.87

Finding the Fourth Proportional to 99,373.20, 137,122.55 and 67,177.87

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Solution

The fourth proportional to 99,373.20, 137,122.55 and 67,177.87 is: 92,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,373.20 : 137,122.55 = 67,177.87 : x
  2. Step 2: Convert to fraction form
    99,373.20/137,122.55 = 67,177.87/x
  3. Step 3: Cross multiply
    99,373.20x = 137,122.55 × 67,177.87
  4. Step 4: Simplify right side
    99,373.20x = 9,211,600,789.07
  5. Step 5: Solve for x
    x = 9,211,600,789.07/99,373.20
  6. Step 6: Final answer
    x = 92,697.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.