Home / 131,821.80-197,694.30-47,572.20

Finding the Fourth Proportional to 131,821.80, 197,694.30 and 47,572.20

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Solution

The fourth proportional to 131,821.80, 197,694.30 and 47,572.20 is: 71,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,821.80 : 197,694.30 = 47,572.20 : x
  2. Step 2: Convert to fraction form
    131,821.80/197,694.30 = 47,572.20/x
  3. Step 3: Cross multiply
    131,821.80x = 197,694.30 × 47,572.20
  4. Step 4: Simplify right side
    131,821.80x = 9,404,752,778.46
  5. Step 5: Solve for x
    x = 9,404,752,778.46/131,821.80
  6. Step 6: Final answer
    x = 71,344.44

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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.