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Finding the Fourth Proportional to 179,472.90, 269,208.14 and 85,694.34

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Solution

The fourth proportional to 179,472.90, 269,208.14 and 85,694.34 is: 128,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,472.90 : 269,208.14 = 85,694.34 : x
  2. Step 2: Convert to fraction form
    179,472.90/269,208.14 = 85,694.34/x
  3. Step 3: Cross multiply
    179,472.90x = 269,208.14 × 85,694.34
  4. Step 4: Simplify right side
    179,472.90x = 23,069,613,451.46
  5. Step 5: Solve for x
    x = 23,069,613,451.46/179,472.90
  6. Step 6: Final answer
    x = 128,540.93

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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.