Home / 141,276.92-194,962.19-77,618.81

Finding the Fourth Proportional to 141,276.92, 194,962.19 and 77,618.81

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Solution

The fourth proportional to 141,276.92, 194,962.19 and 77,618.81 is: 107,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,276.92 : 194,962.19 = 77,618.81 : x
  2. Step 2: Convert to fraction form
    141,276.92/194,962.19 = 77,618.81/x
  3. Step 3: Cross multiply
    141,276.92x = 194,962.19 × 77,618.81
  4. Step 4: Simplify right side
    141,276.92x = 15,132,731,819.89
  5. Step 5: Solve for x
    x = 15,132,731,819.89/141,276.92
  6. Step 6: Final answer
    x = 107,113.97

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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.