Home / 112,938.24-169,422.96-38,079.78

Finding the Fourth Proportional to 112,938.24, 169,422.96 and 38,079.78

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Solution

The fourth proportional to 112,938.24, 169,422.96 and 38,079.78 is: 57,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.24 : 169,422.96 = 38,079.78 : x
  2. Step 2: Convert to fraction form
    112,938.24/169,422.96 = 38,079.78/x
  3. Step 3: Cross multiply
    112,938.24x = 169,422.96 × 38,079.78
  4. Step 4: Simplify right side
    112,938.24x = 6,451,589,043.75
  5. Step 5: Solve for x
    x = 6,451,589,043.75/112,938.24
  6. Step 6: Final answer
    x = 57,124.93

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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.