Home / 140,700.12-194,177.28-80,256.90

Finding the Fourth Proportional to 140,700.12, 194,177.28 and 80,256.90

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Solution

The fourth proportional to 140,700.12, 194,177.28 and 80,256.90 is: 110,760.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.12 : 194,177.28 = 80,256.90 : x
  2. Step 2: Convert to fraction form
    140,700.12/194,177.28 = 80,256.90/x
  3. Step 3: Cross multiply
    140,700.12x = 194,177.28 × 80,256.90
  4. Step 4: Simplify right side
    140,700.12x = 15,584,066,543.23
  5. Step 5: Solve for x
    x = 15,584,066,543.23/140,700.12
  6. Step 6: Final answer
    x = 110,760.86

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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.