Home / 259,736.75-389,644.08-91,227.38

Finding the Fourth Proportional to 259,736.75, 389,644.08 and 91,227.38

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Solution

The fourth proportional to 259,736.75, 389,644.08 and 91,227.38 is: 136,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,736.75 : 389,644.08 = 91,227.38 : x
  2. Step 2: Convert to fraction form
    259,736.75/389,644.08 = 91,227.38/x
  3. Step 3: Cross multiply
    259,736.75x = 389,644.08 × 91,227.38
  4. Step 4: Simplify right side
    259,736.75x = 35,546,207,449.97
  5. Step 5: Solve for x
    x = 35,546,207,449.97/259,736.75
  6. Step 6: Final answer
    x = 136,854.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.