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Finding the Fourth Proportional to 179,456.68, 269,189.34 and 85,859.56

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Solution

The fourth proportional to 179,456.68, 269,189.34 and 85,859.56 is: 128,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,456.68 : 269,189.34 = 85,859.56 : x
  2. Step 2: Convert to fraction form
    179,456.68/269,189.34 = 85,859.56/x
  3. Step 3: Cross multiply
    179,456.68x = 269,189.34 × 85,859.56
  4. Step 4: Simplify right side
    179,456.68x = 23,112,478,289.09
  5. Step 5: Solve for x
    x = 23,112,478,289.09/179,456.68
  6. Step 6: Final answer
    x = 128,791.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.