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Finding the Fourth Proportional to 169,608.30, 254,467.74 and 85,324.97

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Solution

The fourth proportional to 169,608.30, 254,467.74 and 85,324.97 is: 128,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,608.30 : 254,467.74 = 85,324.97 : x
  2. Step 2: Convert to fraction form
    169,608.30/254,467.74 = 85,324.97/x
  3. Step 3: Cross multiply
    169,608.30x = 254,467.74 × 85,324.97
  4. Step 4: Simplify right side
    169,608.30x = 21,712,451,009.13
  5. Step 5: Solve for x
    x = 21,712,451,009.13/169,608.30
  6. Step 6: Final answer
    x = 128,015.26

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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.