Home / 112,742.82-155,230.99-95,711.76

Finding the Fourth Proportional to 112,742.82, 155,230.99 and 95,711.76

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Solution

The fourth proportional to 112,742.82, 155,230.99 and 95,711.76 is: 131,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,742.82 : 155,230.99 = 95,711.76 : x
  2. Step 2: Convert to fraction form
    112,742.82/155,230.99 = 95,711.76/x
  3. Step 3: Cross multiply
    112,742.82x = 155,230.99 × 95,711.76
  4. Step 4: Simplify right side
    112,742.82x = 14,857,431,259.44
  5. Step 5: Solve for x
    x = 14,857,431,259.44/112,742.82
  6. Step 6: Final answer
    x = 131,781.62

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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.