Home / 98,134.20-135,432.19-55,695.46

Finding the Fourth Proportional to 98,134.20, 135,432.19 and 55,695.46

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Solution

The fourth proportional to 98,134.20, 135,432.19 and 55,695.46 is: 76,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,134.20 : 135,432.19 = 55,695.46 : x
  2. Step 2: Convert to fraction form
    98,134.20/135,432.19 = 55,695.46/x
  3. Step 3: Cross multiply
    98,134.20x = 135,432.19 × 55,695.46
  4. Step 4: Simplify right side
    98,134.20x = 7,542,958,120.86
  5. Step 5: Solve for x
    x = 7,542,958,120.86/98,134.20
  6. Step 6: Final answer
    x = 76,863.71

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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.