Home / 167,961.18-231,781.62-91,478.52

Finding the Fourth Proportional to 167,961.18, 231,781.62 and 91,478.52

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Solution

The fourth proportional to 167,961.18, 231,781.62 and 91,478.52 is: 126,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,961.18 : 231,781.62 = 91,478.52 : x
  2. Step 2: Convert to fraction form
    167,961.18/231,781.62 = 91,478.52/x
  3. Step 3: Cross multiply
    167,961.18x = 231,781.62 × 91,478.52
  4. Step 4: Simplify right side
    167,961.18x = 21,203,039,560.80
  5. Step 5: Solve for x
    x = 21,203,039,560.80/167,961.18
  6. Step 6: Final answer
    x = 126,237.74

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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.