Home / 112,761.48-169,128.78-29,661.96

Finding the Fourth Proportional to 112,761.48, 169,128.78 and 29,661.96

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Solution

The fourth proportional to 112,761.48, 169,128.78 and 29,661.96 is: 44,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,761.48 : 169,128.78 = 29,661.96 : x
  2. Step 2: Convert to fraction form
    112,761.48/169,128.78 = 29,661.96/x
  3. Step 3: Cross multiply
    112,761.48x = 169,128.78 × 29,661.96
  4. Step 4: Simplify right side
    112,761.48x = 5,016,691,107.21
  5. Step 5: Solve for x
    x = 5,016,691,107.21/112,761.48
  6. Step 6: Final answer
    x = 44,489.40

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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.