Home / 168,057.61-231,920.37-91,577.55

Finding the Fourth Proportional to 168,057.61, 231,920.37 and 91,577.55

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Solution

The fourth proportional to 168,057.61, 231,920.37 and 91,577.55 is: 126,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.61 : 231,920.37 = 91,577.55 : x
  2. Step 2: Convert to fraction form
    168,057.61/231,920.37 = 91,577.55/x
  3. Step 3: Cross multiply
    168,057.61x = 231,920.37 × 91,577.55
  4. Step 4: Simplify right side
    168,057.61x = 21,238,699,102.40
  5. Step 5: Solve for x
    x = 21,238,699,102.40/168,057.61
  6. Step 6: Final answer
    x = 126,377.49

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1.5x scale

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.