Home / 168,058.57-231,920.86-91,577.68

Finding the Fourth Proportional to 168,058.57, 231,920.86 and 91,577.68

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Solution

The fourth proportional to 168,058.57, 231,920.86 and 91,577.68 is: 126,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,058.57 : 231,920.86 = 91,577.68 : x
  2. Step 2: Convert to fraction form
    168,058.57/231,920.86 = 91,577.68/x
  3. Step 3: Cross multiply
    168,058.57x = 231,920.86 × 91,577.68
  4. Step 4: Simplify right side
    168,058.57x = 21,238,774,302.40
  5. Step 5: Solve for x
    x = 21,238,774,302.40/168,058.57
  6. Step 6: Final answer
    x = 126,377.22

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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.