Home / 231,026.97-346,540.22-86,959.70

Finding the Fourth Proportional to 231,026.97, 346,540.22 and 86,959.70

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Solution

The fourth proportional to 231,026.97, 346,540.22 and 86,959.70 is: 130,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,026.97 : 346,540.22 = 86,959.70 : x
  2. Step 2: Convert to fraction form
    231,026.97/346,540.22 = 86,959.70/x
  3. Step 3: Cross multiply
    231,026.97x = 346,540.22 × 86,959.70
  4. Step 4: Simplify right side
    231,026.97x = 30,135,033,569.13
  5. Step 5: Solve for x
    x = 30,135,033,569.13/231,026.97
  6. Step 6: Final answer
    x = 130,439.46

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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.