Home / 140,919.60-194,470.64-80,498.24

Finding the Fourth Proportional to 140,919.60, 194,470.64 and 80,498.24

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Solution

The fourth proportional to 140,919.60, 194,470.64 and 80,498.24 is: 111,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.60 : 194,470.64 = 80,498.24 : x
  2. Step 2: Convert to fraction form
    140,919.60/194,470.64 = 80,498.24/x
  3. Step 3: Cross multiply
    140,919.60x = 194,470.64 × 80,498.24
  4. Step 4: Simplify right side
    140,919.60x = 15,654,544,251.67
  5. Step 5: Solve for x
    x = 15,654,544,251.67/140,919.60
  6. Step 6: Final answer
    x = 111,088.48

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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.