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Finding the Fourth Proportional to 159,460.86, 220,057.11 and 91,480.80

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Solution

The fourth proportional to 159,460.86, 220,057.11 and 91,480.80 is: 126,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,460.86 : 220,057.11 = 91,480.80 : x
  2. Step 2: Convert to fraction form
    159,460.86/220,057.11 = 91,480.80/x
  3. Step 3: Cross multiply
    159,460.86x = 220,057.11 × 91,480.80
  4. Step 4: Simplify right side
    159,460.86x = 20,131,000,468.49
  5. Step 5: Solve for x
    x = 20,131,000,468.49/159,460.86
  6. Step 6: Final answer
    x = 126,244.15

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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.