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Finding the Fourth Proportional to 136,009.40, 204,042.90 and 41,231.80

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Solution

The fourth proportional to 136,009.40, 204,042.90 and 41,231.80 is: 61,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,009.40 : 204,042.90 = 41,231.80 : x
  2. Step 2: Convert to fraction form
    136,009.40/204,042.90 = 41,231.80/x
  3. Step 3: Cross multiply
    136,009.40x = 204,042.90 × 41,231.80
  4. Step 4: Simplify right side
    136,009.40x = 8,413,056,044.22
  5. Step 5: Solve for x
    x = 8,413,056,044.22/136,009.40
  6. Step 6: Final answer
    x = 61,856.43

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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.