Home / 138,974.82-191,851.37-93,113.43

Finding the Fourth Proportional to 138,974.82, 191,851.37 and 93,113.43

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Solution

The fourth proportional to 138,974.82, 191,851.37 and 93,113.43 is: 128,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,974.82 : 191,851.37 = 93,113.43 : x
  2. Step 2: Convert to fraction form
    138,974.82/191,851.37 = 93,113.43/x
  3. Step 3: Cross multiply
    138,974.82x = 191,851.37 × 93,113.43
  4. Step 4: Simplify right side
    138,974.82x = 17,863,939,110.90
  5. Step 5: Solve for x
    x = 17,863,939,110.90/138,974.82
  6. Step 6: Final answer
    x = 128,540.83

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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.