Home / 187,936.92-281,732.76-81,254.16

Finding the Fourth Proportional to 187,936.92, 281,732.76 and 81,254.16

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Solution

The fourth proportional to 187,936.92, 281,732.76 and 81,254.16 is: 121,806.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,936.92 : 281,732.76 = 81,254.16 : x
  2. Step 2: Convert to fraction form
    187,936.92/281,732.76 = 81,254.16/x
  3. Step 3: Cross multiply
    187,936.92x = 281,732.76 × 81,254.16
  4. Step 4: Simplify right side
    187,936.92x = 22,891,958,758.28
  5. Step 5: Solve for x
    x = 22,891,958,758.28/187,936.92
  6. Step 6: Final answer
    x = 121,806.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.