Home / 140,780.20-194,229.13-80,308.29

Finding the Fourth Proportional to 140,780.20, 194,229.13 and 80,308.29

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Solution

The fourth proportional to 140,780.20, 194,229.13 and 80,308.29 is: 110,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,780.20 : 194,229.13 = 80,308.29 : x
  2. Step 2: Convert to fraction form
    140,780.20/194,229.13 = 80,308.29/x
  3. Step 3: Cross multiply
    140,780.20x = 194,229.13 × 80,308.29
  4. Step 4: Simplify right side
    140,780.20x = 15,598,209,298.49
  5. Step 5: Solve for x
    x = 15,598,209,298.49/140,780.20
  6. Step 6: Final answer
    x = 110,798.32

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1.5x scale

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.