Home / 138,255.82-190,691.17-104,265.74

Finding the Fourth Proportional to 138,255.82, 190,691.17 and 104,265.74

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Solution

The fourth proportional to 138,255.82, 190,691.17 and 104,265.74 is: 143,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,255.82 : 190,691.17 = 104,265.74 : x
  2. Step 2: Convert to fraction form
    138,255.82/190,691.17 = 104,265.74/x
  3. Step 3: Cross multiply
    138,255.82x = 190,691.17 × 104,265.74
  4. Step 4: Simplify right side
    138,255.82x = 19,882,555,951.52
  5. Step 5: Solve for x
    x = 19,882,555,951.52/138,255.82
  6. Step 6: Final answer
    x = 143,809.90

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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.