Home / 140,781.56-194,204.90-87,049.40

Finding the Fourth Proportional to 140,781.56, 194,204.90 and 87,049.40

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Solution

The fourth proportional to 140,781.56, 194,204.90 and 87,049.40 is: 120,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,781.56 : 194,204.90 = 87,049.40 : x
  2. Step 2: Convert to fraction form
    140,781.56/194,204.90 = 87,049.40/x
  3. Step 3: Cross multiply
    140,781.56x = 194,204.90 × 87,049.40
  4. Step 4: Simplify right side
    140,781.56x = 16,905,420,022.06
  5. Step 5: Solve for x
    x = 16,905,420,022.06/140,781.56
  6. Step 6: Final answer
    x = 120,082.63

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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.