Home / 129,805.88-194,732.85-41,081.72

Finding the Fourth Proportional to 129,805.88, 194,732.85 and 41,081.72

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Solution

The fourth proportional to 129,805.88, 194,732.85 and 41,081.72 is: 61,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,805.88 : 194,732.85 = 41,081.72 : x
  2. Step 2: Convert to fraction form
    129,805.88/194,732.85 = 41,081.72/x
  3. Step 3: Cross multiply
    129,805.88x = 194,732.85 × 41,081.72
  4. Step 4: Simplify right side
    129,805.88x = 7,999,960,418.50
  5. Step 5: Solve for x
    x = 7,999,960,418.50/129,805.88
  6. Step 6: Final answer
    x = 61,630.19

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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.