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Finding the Fourth Proportional to 169,577.38, 254,371.49 and 85,291.54

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Solution

The fourth proportional to 169,577.38, 254,371.49 and 85,291.54 is: 127,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,577.38 : 254,371.49 = 85,291.54 : x
  2. Step 2: Convert to fraction form
    169,577.38/254,371.49 = 85,291.54/x
  3. Step 3: Cross multiply
    169,577.38x = 254,371.49 × 85,291.54
  4. Step 4: Simplify right side
    169,577.38x = 21,695,736,114.19
  5. Step 5: Solve for x
    x = 21,695,736,114.19/169,577.38
  6. Step 6: Final answer
    x = 127,940.04

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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.