Home / 100,060.30-138,049.68-57,617.92

Finding the Fourth Proportional to 100,060.30, 138,049.68 and 57,617.92

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Solution

The fourth proportional to 100,060.30, 138,049.68 and 57,617.92 is: 79,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,060.30 : 138,049.68 = 57,617.92 : x
  2. Step 2: Convert to fraction form
    100,060.30/138,049.68 = 57,617.92/x
  3. Step 3: Cross multiply
    100,060.30x = 138,049.68 × 57,617.92
  4. Step 4: Simplify right side
    100,060.30x = 7,954,135,418.27
  5. Step 5: Solve for x
    x = 7,954,135,418.27/100,060.30
  6. Step 6: Final answer
    x = 79,493.42

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1.5x scale

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.