Home / 100,390.20-138,542.82-60,096.17

Finding the Fourth Proportional to 100,390.20, 138,542.82 and 60,096.17

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Solution

The fourth proportional to 100,390.20, 138,542.82 and 60,096.17 is: 82,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.20 : 138,542.82 = 60,096.17 : x
  2. Step 2: Convert to fraction form
    100,390.20/138,542.82 = 60,096.17/x
  3. Step 3: Cross multiply
    100,390.20x = 138,542.82 × 60,096.17
  4. Step 4: Simplify right side
    100,390.20x = 8,325,892,170.29
  5. Step 5: Solve for x
    x = 8,325,892,170.29/100,390.20
  6. Step 6: Final answer
    x = 82,935.31

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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.