Home / 198,388.12-297,582.13-80,031.73

Finding the Fourth Proportional to 198,388.12, 297,582.13 and 80,031.73

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Solution

The fourth proportional to 198,388.12, 297,582.13 and 80,031.73 is: 120,047.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,388.12 : 297,582.13 = 80,031.73 : x
  2. Step 2: Convert to fraction form
    198,388.12/297,582.13 = 80,031.73/x
  3. Step 3: Cross multiply
    198,388.12x = 297,582.13 × 80,031.73
  4. Step 4: Simplify right side
    198,388.12x = 23,816,012,680.98
  5. Step 5: Solve for x
    x = 23,816,012,680.98/198,388.12
  6. Step 6: Final answer
    x = 120,047.57

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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.