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Finding the Fourth Proportional to 136,104.76, 204,162.90 and 66,043

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Solution

The fourth proportional to 136,104.76, 204,162.90 and 66,043 is: 99,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,104.76 : 204,162.90 = 66,043 : x
  2. Step 2: Convert to fraction form
    136,104.76/204,162.90 = 66,043/x
  3. Step 3: Cross multiply
    136,104.76x = 204,162.90 × 66,043
  4. Step 4: Simplify right side
    136,104.76x = 13,483,530,404.70
  5. Step 5: Solve for x
    x = 13,483,530,404.70/136,104.76
  6. Step 6: Final answer
    x = 99,067.29

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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.