Home / 113,712.56-156,924.04-63,414.80

Finding the Fourth Proportional to 113,712.56, 156,924.04 and 63,414.80

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Solution

The fourth proportional to 113,712.56, 156,924.04 and 63,414.80 is: 87,512.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,712.56 : 156,924.04 = 63,414.80 : x
  2. Step 2: Convert to fraction form
    113,712.56/156,924.04 = 63,414.80/x
  3. Step 3: Cross multiply
    113,712.56x = 156,924.04 × 63,414.80
  4. Step 4: Simplify right side
    113,712.56x = 9,951,306,611.79
  5. Step 5: Solve for x
    x = 9,951,306,611.79/113,712.56
  6. Step 6: Final answer
    x = 87,512.82

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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.