Home / 111,491.18-167,230.26-81,535.76

Finding the Fourth Proportional to 111,491.18, 167,230.26 and 81,535.76

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Solution

The fourth proportional to 111,491.18, 167,230.26 and 81,535.76 is: 122,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,491.18 : 167,230.26 = 81,535.76 : x
  2. Step 2: Convert to fraction form
    111,491.18/167,230.26 = 81,535.76/x
  3. Step 3: Cross multiply
    111,491.18x = 167,230.26 × 81,535.76
  4. Step 4: Simplify right side
    111,491.18x = 13,635,246,344.10
  5. Step 5: Solve for x
    x = 13,635,246,344.10/111,491.18
  6. Step 6: Final answer
    x = 122,298.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.