Home / 129,499.17-194,248.45-40,760.43

Finding the Fourth Proportional to 129,499.17, 194,248.45 and 40,760.43

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Solution

The fourth proportional to 129,499.17, 194,248.45 and 40,760.43 is: 61,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,499.17 : 194,248.45 = 40,760.43 : x
  2. Step 2: Convert to fraction form
    129,499.17/194,248.45 = 40,760.43/x
  3. Step 3: Cross multiply
    129,499.17x = 194,248.45 × 40,760.43
  4. Step 4: Simplify right side
    129,499.17x = 7,917,650,348.83
  5. Step 5: Solve for x
    x = 7,917,650,348.83/129,499.17
  6. Step 6: Final answer
    x = 61,140.55

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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.