Home / 141,853.45-195,757.76-78,192.62

Finding the Fourth Proportional to 141,853.45, 195,757.76 and 78,192.62

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Solution

The fourth proportional to 141,853.45, 195,757.76 and 78,192.62 is: 107,905.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,853.45 : 195,757.76 = 78,192.62 : x
  2. Step 2: Convert to fraction form
    141,853.45/195,757.76 = 78,192.62/x
  3. Step 3: Cross multiply
    141,853.45x = 195,757.76 × 78,192.62
  4. Step 4: Simplify right side
    141,853.45x = 15,306,812,139.73
  5. Step 5: Solve for x
    x = 15,306,812,139.73/141,853.45
  6. Step 6: Final answer
    x = 107,905.82

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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.