Home / 107,134.50-147,778.92-68,943.90

Finding the Fourth Proportional to 107,134.50, 147,778.92 and 68,943.90

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Solution

The fourth proportional to 107,134.50, 147,778.92 and 68,943.90 is: 95,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,134.50 : 147,778.92 = 68,943.90 : x
  2. Step 2: Convert to fraction form
    107,134.50/147,778.92 = 68,943.90/x
  3. Step 3: Cross multiply
    107,134.50x = 147,778.92 × 68,943.90
  4. Step 4: Simplify right side
    107,134.50x = 10,188,455,082.59
  5. Step 5: Solve for x
    x = 10,188,455,082.59/107,134.50
  6. Step 6: Final answer
    x = 95,099.67

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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.