Home / 131,839.80-197,721.30-47,590.20

Finding the Fourth Proportional to 131,839.80, 197,721.30 and 47,590.20

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Solution

The fourth proportional to 131,839.80, 197,721.30 and 47,590.20 is: 71,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.80 : 197,721.30 = 47,590.20 : x
  2. Step 2: Convert to fraction form
    131,839.80/197,721.30 = 47,590.20/x
  3. Step 3: Cross multiply
    131,839.80x = 197,721.30 × 47,590.20
  4. Step 4: Simplify right side
    131,839.80x = 9,409,596,211.26
  5. Step 5: Solve for x
    x = 9,409,596,211.26/131,839.80
  6. Step 6: Final answer
    x = 71,371.44

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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.