Home / 138,744.73-191,467.71-75,082.52

Finding the Fourth Proportional to 138,744.73, 191,467.71 and 75,082.52

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Solution

The fourth proportional to 138,744.73, 191,467.71 and 75,082.52 is: 103,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,744.73 : 191,467.71 = 75,082.52 : x
  2. Step 2: Convert to fraction form
    138,744.73/191,467.71 = 75,082.52/x
  3. Step 3: Cross multiply
    138,744.73x = 191,467.71 × 75,082.52
  4. Step 4: Simplify right side
    138,744.73x = 14,375,878,165.43
  5. Step 5: Solve for x
    x = 14,375,878,165.43/138,744.73
  6. Step 6: Final answer
    x = 103,613.87

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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.