Home / 86,198.28-129,306.42-23,868.78

Finding the Fourth Proportional to 86,198.28, 129,306.42 and 23,868.78

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Solution

The fourth proportional to 86,198.28, 129,306.42 and 23,868.78 is: 35,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,198.28 : 129,306.42 = 23,868.78 : x
  2. Step 2: Convert to fraction form
    86,198.28/129,306.42 = 23,868.78/x
  3. Step 3: Cross multiply
    86,198.28x = 129,306.42 × 23,868.78
  4. Step 4: Simplify right side
    86,198.28x = 3,086,386,491.57
  5. Step 5: Solve for x
    x = 3,086,386,491.57/86,198.28
  6. Step 6: Final answer
    x = 35,805.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.