Home / 168,091.20-231,990.57-110,721.33

Finding the Fourth Proportional to 168,091.20, 231,990.57 and 110,721.33

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Solution

The fourth proportional to 168,091.20, 231,990.57 and 110,721.33 is: 152,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,091.20 : 231,990.57 = 110,721.33 : x
  2. Step 2: Convert to fraction form
    168,091.20/231,990.57 = 110,721.33/x
  3. Step 3: Cross multiply
    168,091.20x = 231,990.57 × 110,721.33
  4. Step 4: Simplify right side
    168,091.20x = 25,686,304,457.86
  5. Step 5: Solve for x
    x = 25,686,304,457.86/168,091.20
  6. Step 6: Final answer
    x = 152,811.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.