Home / 129,872.38-194,828.04-45,617.68

Finding the Fourth Proportional to 129,872.38, 194,828.04 and 45,617.68

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Solution

The fourth proportional to 129,872.38, 194,828.04 and 45,617.68 is: 68,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872.38 : 194,828.04 = 45,617.68 : x
  2. Step 2: Convert to fraction form
    129,872.38/194,828.04 = 45,617.68/x
  3. Step 3: Cross multiply
    129,872.38x = 194,828.04 × 45,617.68
  4. Step 4: Simplify right side
    129,872.38x = 8,887,603,183.75
  5. Step 5: Solve for x
    x = 8,887,603,183.75/129,872.38
  6. Step 6: Final answer
    x = 68,433.36

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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.