Home / 113,198.44-156,233.19-65,480.80

Finding the Fourth Proportional to 113,198.44, 156,233.19 and 65,480.80

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Solution

The fourth proportional to 113,198.44, 156,233.19 and 65,480.80 is: 90,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,198.44 : 156,233.19 = 65,480.80 : x
  2. Step 2: Convert to fraction form
    113,198.44/156,233.19 = 65,480.80/x
  3. Step 3: Cross multiply
    113,198.44x = 156,233.19 × 65,480.80
  4. Step 4: Simplify right side
    113,198.44x = 10,230,274,267.75
  5. Step 5: Solve for x
    x = 10,230,274,267.75/113,198.44
  6. Step 6: Final answer
    x = 90,374.69

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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.