Home / 140,764.24-194,273.97-86,306.78

Finding the Fourth Proportional to 140,764.24, 194,273.97 and 86,306.78

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Solution

The fourth proportional to 140,764.24, 194,273.97 and 86,306.78 is: 119,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,764.24 : 194,273.97 = 86,306.78 : x
  2. Step 2: Convert to fraction form
    140,764.24/194,273.97 = 86,306.78/x
  3. Step 3: Cross multiply
    140,764.24x = 194,273.97 × 86,306.78
  4. Step 4: Simplify right side
    140,764.24x = 16,767,159,817.15
  5. Step 5: Solve for x
    x = 16,767,159,817.15/140,764.24
  6. Step 6: Final answer
    x = 119,115.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.