Home / 123,982.80-185,974.20-30,488.55

Finding the Fourth Proportional to 123,982.80, 185,974.20 and 30,488.55

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Solution

The fourth proportional to 123,982.80, 185,974.20 and 30,488.55 is: 45,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,982.80 : 185,974.20 = 30,488.55 : x
  2. Step 2: Convert to fraction form
    123,982.80/185,974.20 = 30,488.55/x
  3. Step 3: Cross multiply
    123,982.80x = 185,974.20 × 30,488.55
  4. Step 4: Simplify right side
    123,982.80x = 5,670,083,695.41
  5. Step 5: Solve for x
    x = 5,670,083,695.41/123,982.80
  6. Step 6: Final answer
    x = 45,732.83

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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.