Home / 168,084.08-231,961.92-91,609.55

Finding the Fourth Proportional to 168,084.08, 231,961.92 and 91,609.55

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Solution

The fourth proportional to 168,084.08, 231,961.92 and 91,609.55 is: 126,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,084.08 : 231,961.92 = 91,609.55 : x
  2. Step 2: Convert to fraction form
    168,084.08/231,961.92 = 91,609.55/x
  3. Step 3: Cross multiply
    168,084.08x = 231,961.92 × 91,609.55
  4. Step 4: Simplify right side
    168,084.08x = 21,249,926,474.85
  5. Step 5: Solve for x
    x = 21,249,926,474.85/168,084.08
  6. Step 6: Final answer
    x = 126,424.39

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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.