Home / 113,034.49-169,500.93-81,311.60

Finding the Fourth Proportional to 113,034.49, 169,500.93 and 81,311.60

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Solution

The fourth proportional to 113,034.49, 169,500.93 and 81,311.60 is: 121,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,034.49 : 169,500.93 = 81,311.60 : x
  2. Step 2: Convert to fraction form
    113,034.49/169,500.93 = 81,311.60/x
  3. Step 3: Cross multiply
    113,034.49x = 169,500.93 × 81,311.60
  4. Step 4: Simplify right side
    113,034.49x = 13,782,390,565.73
  5. Step 5: Solve for x
    x = 13,782,390,565.73/113,034.49
  6. Step 6: Final answer
    x = 121,930.85

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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.