Home / 129,782.20-194,699.24-54,902

Finding the Fourth Proportional to 129,782.20, 194,699.24 and 54,902

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Solution

The fourth proportional to 129,782.20, 194,699.24 and 54,902 is: 82,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,782.20 : 194,699.24 = 54,902 : x
  2. Step 2: Convert to fraction form
    129,782.20/194,699.24 = 54,902/x
  3. Step 3: Cross multiply
    129,782.20x = 194,699.24 × 54,902
  4. Step 4: Simplify right side
    129,782.20x = 10,689,377,674.48
  5. Step 5: Solve for x
    x = 10,689,377,674.48/129,782.20
  6. Step 6: Final answer
    x = 82,363.97

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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.