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Finding the Fourth Proportional to 168,080.76, 231,951.48 and 91,599.87

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Solution

The fourth proportional to 168,080.76, 231,951.48 and 91,599.87 is: 126,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,080.76 : 231,951.48 = 91,599.87 : x
  2. Step 2: Convert to fraction form
    168,080.76/231,951.48 = 91,599.87/x
  3. Step 3: Cross multiply
    168,080.76x = 231,951.48 × 91,599.87
  4. Step 4: Simplify right side
    168,080.76x = 21,246,724,605.43
  5. Step 5: Solve for x
    x = 21,246,724,605.43/168,080.76
  6. Step 6: Final answer
    x = 126,407.84

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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.