Home / 80,637.12-111,025.08-73,163.88

Finding the Fourth Proportional to 80,637.12, 111,025.08 and 73,163.88

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Solution

The fourth proportional to 80,637.12, 111,025.08 and 73,163.88 is: 100,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,637.12 : 111,025.08 = 73,163.88 : x
  2. Step 2: Convert to fraction form
    80,637.12/111,025.08 = 73,163.88/x
  3. Step 3: Cross multiply
    80,637.12x = 111,025.08 × 73,163.88
  4. Step 4: Simplify right side
    80,637.12x = 8,123,025,630.11
  5. Step 5: Solve for x
    x = 8,123,025,630.11/80,637.12
  6. Step 6: Final answer
    x = 100,735.56

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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.