Home / 168,098.56-231,972.98-91,618.36

Finding the Fourth Proportional to 168,098.56, 231,972.98 and 91,618.36

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Solution

The fourth proportional to 168,098.56, 231,972.98 and 91,618.36 is: 126,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,098.56 : 231,972.98 = 91,618.36 : x
  2. Step 2: Convert to fraction form
    168,098.56/231,972.98 = 91,618.36/x
  3. Step 3: Cross multiply
    168,098.56x = 231,972.98 × 91,618.36
  4. Step 4: Simplify right side
    168,098.56x = 21,252,983,991.91
  5. Step 5: Solve for x
    x = 21,252,983,991.91/168,098.56
  6. Step 6: Final answer
    x = 126,431.68

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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.