Home / 140,800.72-194,306.68-80,379.60

Finding the Fourth Proportional to 140,800.72, 194,306.68 and 80,379.60

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Solution

The fourth proportional to 140,800.72, 194,306.68 and 80,379.60 is: 110,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,800.72 : 194,306.68 = 80,379.60 : x
  2. Step 2: Convert to fraction form
    140,800.72/194,306.68 = 80,379.60/x
  3. Step 3: Cross multiply
    140,800.72x = 194,306.68 × 80,379.60
  4. Step 4: Simplify right side
    140,800.72x = 15,618,293,215.73
  5. Step 5: Solve for x
    x = 15,618,293,215.73/140,800.72
  6. Step 6: Final answer
    x = 110,924.81

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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.