Home / 129,872.47-194,814.28-51,003.79

Finding the Fourth Proportional to 129,872.47, 194,814.28 and 51,003.79

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Solution

The fourth proportional to 129,872.47, 194,814.28 and 51,003.79 is: 76,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872.47 : 194,814.28 = 51,003.79 : x
  2. Step 2: Convert to fraction form
    129,872.47/194,814.28 = 51,003.79/x
  3. Step 3: Cross multiply
    129,872.47x = 194,814.28 × 51,003.79
  4. Step 4: Simplify right side
    129,872.47x = 9,936,266,626.12
  5. Step 5: Solve for x
    x = 9,936,266,626.12/129,872.47
  6. Step 6: Final answer
    x = 76,507.87

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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.