Home / 100,727.71-138,997.38-58,292.62

Finding the Fourth Proportional to 100,727.71, 138,997.38 and 58,292.62

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Solution

The fourth proportional to 100,727.71, 138,997.38 and 58,292.62 is: 80,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,727.71 : 138,997.38 = 58,292.62 : x
  2. Step 2: Convert to fraction form
    100,727.71/138,997.38 = 58,292.62/x
  3. Step 3: Cross multiply
    100,727.71x = 138,997.38 × 58,292.62
  4. Step 4: Simplify right side
    100,727.71x = 8,102,521,324.44
  5. Step 5: Solve for x
    x = 8,102,521,324.44/100,727.71
  6. Step 6: Final answer
    x = 80,439.85

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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.