Home / 161,418.18-222,753.75-89,796.66

Finding the Fourth Proportional to 161,418.18, 222,753.75 and 89,796.66

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Solution

The fourth proportional to 161,418.18, 222,753.75 and 89,796.66 is: 123,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,418.18 : 222,753.75 = 89,796.66 : x
  2. Step 2: Convert to fraction form
    161,418.18/222,753.75 = 89,796.66/x
  3. Step 3: Cross multiply
    161,418.18x = 222,753.75 × 89,796.66
  4. Step 4: Simplify right side
    161,418.18x = 20,002,542,752.48
  5. Step 5: Solve for x
    x = 20,002,542,752.48/161,418.18
  6. Step 6: Final answer
    x = 123,917.53

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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.