Home / 129,648.12-194,472.18-40,910.61

Finding the Fourth Proportional to 129,648.12, 194,472.18 and 40,910.61

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Solution

The fourth proportional to 129,648.12, 194,472.18 and 40,910.61 is: 61,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,648.12 : 194,472.18 = 40,910.61 : x
  2. Step 2: Convert to fraction form
    129,648.12/194,472.18 = 40,910.61/x
  3. Step 3: Cross multiply
    129,648.12x = 194,472.18 × 40,910.61
  4. Step 4: Simplify right side
    129,648.12x = 7,955,975,511.83
  5. Step 5: Solve for x
    x = 7,955,975,511.83/129,648.12
  6. Step 6: Final answer
    x = 61,365.92

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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.