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Finding the Fourth Proportional to 102,961.60, 154,269.60 and 88,100.80

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Solution

The fourth proportional to 102,961.60, 154,269.60 and 88,100.80 is: 132,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,961.60 : 154,269.60 = 88,100.80 : x
  2. Step 2: Convert to fraction form
    102,961.60/154,269.60 = 88,100.80/x
  3. Step 3: Cross multiply
    102,961.60x = 154,269.60 × 88,100.80
  4. Step 4: Simplify right side
    102,961.60x = 13,591,275,175.68
  5. Step 5: Solve for x
    x = 13,591,275,175.68/102,961.60
  6. Step 6: Final answer
    x = 132,003.34

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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.