Home / 141,872.28-195,792.57-78,209.97

Finding the Fourth Proportional to 141,872.28, 195,792.57 and 78,209.97

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Solution

The fourth proportional to 141,872.28, 195,792.57 and 78,209.97 is: 107,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,872.28 : 195,792.57 = 78,209.97 : x
  2. Step 2: Convert to fraction form
    141,872.28/195,792.57 = 78,209.97/x
  3. Step 3: Cross multiply
    141,872.28x = 195,792.57 × 78,209.97
  4. Step 4: Simplify right side
    141,872.28x = 15,312,931,025.92
  5. Step 5: Solve for x
    x = 15,312,931,025.92/141,872.28
  6. Step 6: Final answer
    x = 107,934.62

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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.