Home / 112,739.89-169,135.75-33,855.61

Finding the Fourth Proportional to 112,739.89, 169,135.75 and 33,855.61

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Solution

The fourth proportional to 112,739.89, 169,135.75 and 33,855.61 is: 50,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,739.89 : 169,135.75 = 33,855.61 : x
  2. Step 2: Convert to fraction form
    112,739.89/169,135.75 = 33,855.61/x
  3. Step 3: Cross multiply
    112,739.89x = 169,135.75 × 33,855.61
  4. Step 4: Simplify right side
    112,739.89x = 5,726,193,989.06
  5. Step 5: Solve for x
    x = 5,726,193,989.06/112,739.89
  6. Step 6: Final answer
    x = 50,791.20

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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.