Home / 168,091.29-231,966.05-91,610.42

Finding the Fourth Proportional to 168,091.29, 231,966.05 and 91,610.42

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Solution

The fourth proportional to 168,091.29, 231,966.05 and 91,610.42 is: 126,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,091.29 : 231,966.05 = 91,610.42 : x
  2. Step 2: Convert to fraction form
    168,091.29/231,966.05 = 91,610.42/x
  3. Step 3: Cross multiply
    168,091.29x = 231,966.05 × 91,610.42
  4. Step 4: Simplify right side
    168,091.29x = 21,250,505,648.36
  5. Step 5: Solve for x
    x = 21,250,505,648.36/168,091.29
  6. Step 6: Final answer
    x = 126,422.41

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1.5x scale

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.