Home / 141,046.68-194,640.91-78,956.30

Finding the Fourth Proportional to 141,046.68, 194,640.91 and 78,956.30

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Solution

The fourth proportional to 141,046.68, 194,640.91 and 78,956.30 is: 108,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,046.68 : 194,640.91 = 78,956.30 : x
  2. Step 2: Convert to fraction form
    141,046.68/194,640.91 = 78,956.30/x
  3. Step 3: Cross multiply
    141,046.68x = 194,640.91 × 78,956.30
  4. Step 4: Simplify right side
    141,046.68x = 15,368,126,371.44
  5. Step 5: Solve for x
    x = 15,368,126,371.44/141,046.68
  6. Step 6: Final answer
    x = 108,957.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.