Home / 123,786.92-170,825.78-67,198.30

Finding the Fourth Proportional to 123,786.92, 170,825.78 and 67,198.30

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Solution

The fourth proportional to 123,786.92, 170,825.78 and 67,198.30 is: 92,733.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,786.92 : 170,825.78 = 67,198.30 : x
  2. Step 2: Convert to fraction form
    123,786.92/170,825.78 = 67,198.30/x
  3. Step 3: Cross multiply
    123,786.92x = 170,825.78 × 67,198.30
  4. Step 4: Simplify right side
    123,786.92x = 11,479,202,012.17
  5. Step 5: Solve for x
    x = 11,479,202,012.17/123,786.92
  6. Step 6: Final answer
    x = 92,733.56

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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.