Home / 133,057.20-199,610.10-54,179.40

Finding the Fourth Proportional to 133,057.20, 199,610.10 and 54,179.40

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Solution

The fourth proportional to 133,057.20, 199,610.10 and 54,179.40 is: 81,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057.20 : 199,610.10 = 54,179.40 : x
  2. Step 2: Convert to fraction form
    133,057.20/199,610.10 = 54,179.40/x
  3. Step 3: Cross multiply
    133,057.20x = 199,610.10 × 54,179.40
  4. Step 4: Simplify right side
    133,057.20x = 10,814,755,451.94
  5. Step 5: Solve for x
    x = 10,814,755,451.94/133,057.20
  6. Step 6: Final answer
    x = 81,278.99

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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.