Home / 141,377.28-195,103.08-77,717.76

Finding the Fourth Proportional to 141,377.28, 195,103.08 and 77,717.76

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Solution

The fourth proportional to 141,377.28, 195,103.08 and 77,717.76 is: 107,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,377.28 : 195,103.08 = 77,717.76 : x
  2. Step 2: Convert to fraction form
    141,377.28/195,103.08 = 77,717.76/x
  3. Step 3: Cross multiply
    141,377.28x = 195,103.08 × 77,717.76
  4. Step 4: Simplify right side
    141,377.28x = 15,162,974,346.70
  5. Step 5: Solve for x
    x = 15,162,974,346.70/141,377.28
  6. Step 6: Final answer
    x = 107,251.85

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1.5x scale

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.