Home / 129,365.50-194,049.14-49,381.90

Finding the Fourth Proportional to 129,365.50, 194,049.14 and 49,381.90

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Solution

The fourth proportional to 129,365.50, 194,049.14 and 49,381.90 is: 74,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,365.50 : 194,049.14 = 49,381.90 : x
  2. Step 2: Convert to fraction form
    129,365.50/194,049.14 = 49,381.90/x
  3. Step 3: Cross multiply
    129,365.50x = 194,049.14 × 49,381.90
  4. Step 4: Simplify right side
    129,365.50x = 9,582,515,226.57
  5. Step 5: Solve for x
    x = 9,582,515,226.57/129,365.50
  6. Step 6: Final answer
    x = 74,073.19

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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.