Home / 129,204.48-193,787.28-82,781.76

Finding the Fourth Proportional to 129,204.48, 193,787.28 and 82,781.76

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Solution

The fourth proportional to 129,204.48, 193,787.28 and 82,781.76 is: 124,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,204.48 : 193,787.28 = 82,781.76 : x
  2. Step 2: Convert to fraction form
    129,204.48/193,787.28 = 82,781.76/x
  3. Step 3: Cross multiply
    129,204.48x = 193,787.28 × 82,781.76
  4. Step 4: Simplify right side
    129,204.48x = 16,042,052,104.01
  5. Step 5: Solve for x
    x = 16,042,052,104.01/129,204.48
  6. Step 6: Final answer
    x = 124,160.18

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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.