Home / 131,239.04-196,945.41-72,115.88

Finding the Fourth Proportional to 131,239.04, 196,945.41 and 72,115.88

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Solution

The fourth proportional to 131,239.04, 196,945.41 and 72,115.88 is: 108,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239.04 : 196,945.41 = 72,115.88 : x
  2. Step 2: Convert to fraction form
    131,239.04/196,945.41 = 72,115.88/x
  3. Step 3: Cross multiply
    131,239.04x = 196,945.41 × 72,115.88
  4. Step 4: Simplify right side
    131,239.04x = 14,202,891,554.11
  5. Step 5: Solve for x
    x = 14,202,891,554.11/131,239.04
  6. Step 6: Final answer
    x = 108,221.54

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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.