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Finding the Fourth Proportional to 135,110.60, 202,665.90 and 104,006.60

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Solution

The fourth proportional to 135,110.60, 202,665.90 and 104,006.60 is: 156,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,110.60 : 202,665.90 = 104,006.60 : x
  2. Step 2: Convert to fraction form
    135,110.60/202,665.90 = 104,006.60/x
  3. Step 3: Cross multiply
    135,110.60x = 202,665.90 × 104,006.60
  4. Step 4: Simplify right side
    135,110.60x = 21,078,591,194.94
  5. Step 5: Solve for x
    x = 21,078,591,194.94/135,110.60
  6. Step 6: Final answer
    x = 156,009.90

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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.