Home / 168,072.06-231,939.48-91,591.22

Finding the Fourth Proportional to 168,072.06, 231,939.48 and 91,591.22

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Solution

The fourth proportional to 168,072.06, 231,939.48 and 91,591.22 is: 126,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,072.06 : 231,939.48 = 91,591.22 : x
  2. Step 2: Convert to fraction form
    168,072.06/231,939.48 = 91,591.22/x
  3. Step 3: Cross multiply
    168,072.06x = 231,939.48 × 91,591.22
  4. Step 4: Simplify right side
    168,072.06x = 21,243,620,862.68
  5. Step 5: Solve for x
    x = 21,243,620,862.68/168,072.06
  6. Step 6: Final answer
    x = 126,395.91

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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.