Home / 140,778.98-194,278.12-80,348.40

Finding the Fourth Proportional to 140,778.98, 194,278.12 and 80,348.40

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Solution

The fourth proportional to 140,778.98, 194,278.12 and 80,348.40 is: 110,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,778.98 : 194,278.12 = 80,348.40 : x
  2. Step 2: Convert to fraction form
    140,778.98/194,278.12 = 80,348.40/x
  3. Step 3: Cross multiply
    140,778.98x = 194,278.12 × 80,348.40
  4. Step 4: Simplify right side
    140,778.98x = 15,609,936,097.01
  5. Step 5: Solve for x
    x = 15,609,936,097.01/140,778.98
  6. Step 6: Final answer
    x = 110,882.58

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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.