Home / 140,177.45-193,438.17-79,742.45

Finding the Fourth Proportional to 140,177.45, 193,438.17 and 79,742.45

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Solution

The fourth proportional to 140,177.45, 193,438.17 and 79,742.45 is: 110,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,177.45 : 193,438.17 = 79,742.45 : x
  2. Step 2: Convert to fraction form
    140,177.45/193,438.17 = 79,742.45/x
  3. Step 3: Cross multiply
    140,177.45x = 193,438.17 × 79,742.45
  4. Step 4: Simplify right side
    140,177.45x = 15,425,234,082.91
  5. Step 5: Solve for x
    x = 15,425,234,082.91/140,177.45
  6. Step 6: Final answer
    x = 110,040.76

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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.