Home / 99,380.20-149,243.10-52,724.20

Finding the Fourth Proportional to 99,380.20, 149,243.10 and 52,724.20

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Solution

The fourth proportional to 99,380.20, 149,243.10 and 52,724.20 is: 79,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,380.20 : 149,243.10 = 52,724.20 : x
  2. Step 2: Convert to fraction form
    99,380.20/149,243.10 = 52,724.20/x
  3. Step 3: Cross multiply
    99,380.20x = 149,243.10 × 52,724.20
  4. Step 4: Simplify right side
    99,380.20x = 7,868,723,053.02
  5. Step 5: Solve for x
    x = 7,868,723,053.02/99,380.20
  6. Step 6: Final answer
    x = 79,177.98

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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.