Home / 140,765.20-194,207.76-80,292.16

Finding the Fourth Proportional to 140,765.20, 194,207.76 and 80,292.16

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Solution

The fourth proportional to 140,765.20, 194,207.76 and 80,292.16 is: 110,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.20 : 194,207.76 = 80,292.16 : x
  2. Step 2: Convert to fraction form
    140,765.20/194,207.76 = 80,292.16/x
  3. Step 3: Cross multiply
    140,765.20x = 194,207.76 × 80,292.16
  4. Step 4: Simplify right side
    140,765.20x = 15,593,360,539.16
  5. Step 5: Solve for x
    x = 15,593,360,539.16/140,765.20
  6. Step 6: Final answer
    x = 110,775.68

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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.