Home / 167,855.16-231,645.77-91,377.05

Finding the Fourth Proportional to 167,855.16, 231,645.77 and 91,377.05

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Solution

The fourth proportional to 167,855.16, 231,645.77 and 91,377.05 is: 126,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,855.16 : 231,645.77 = 91,377.05 : x
  2. Step 2: Convert to fraction form
    167,855.16/231,645.77 = 91,377.05/x
  3. Step 3: Cross multiply
    167,855.16x = 231,645.77 × 91,377.05
  4. Step 4: Simplify right side
    167,855.16x = 21,167,107,107.58
  5. Step 5: Solve for x
    x = 21,167,107,107.58/167,855.16
  6. Step 6: Final answer
    x = 126,103.40

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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.