Home / 129,805.24-194,638.38-39,832.12

Finding the Fourth Proportional to 129,805.24, 194,638.38 and 39,832.12

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Solution

The fourth proportional to 129,805.24, 194,638.38 and 39,832.12 is: 59,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,805.24 : 194,638.38 = 39,832.12 : x
  2. Step 2: Convert to fraction form
    129,805.24/194,638.38 = 39,832.12/x
  3. Step 3: Cross multiply
    129,805.24x = 194,638.38 × 39,832.12
  4. Step 4: Simplify right side
    129,805.24x = 7,752,859,308.77
  5. Step 5: Solve for x
    x = 7,752,859,308.77/129,805.24
  6. Step 6: Final answer
    x = 59,726.86

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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.