Home / 112,939.30-169,424.57-38,080.86

Finding the Fourth Proportional to 112,939.30, 169,424.57 and 38,080.86

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Solution

The fourth proportional to 112,939.30, 169,424.57 and 38,080.86 is: 57,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,939.30 : 169,424.57 = 38,080.86 : x
  2. Step 2: Convert to fraction form
    112,939.30/169,424.57 = 38,080.86/x
  3. Step 3: Cross multiply
    112,939.30x = 169,424.57 × 38,080.86
  4. Step 4: Simplify right side
    112,939.30x = 6,451,833,330.73
  5. Step 5: Solve for x
    x = 6,451,833,330.73/112,939.30
  6. Step 6: Final answer
    x = 57,126.56

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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.