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Finding the Fourth Proportional to 99,375.60, 149,063.40 and 88,100.40

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Solution

The fourth proportional to 99,375.60, 149,063.40 and 88,100.40 is: 132,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,375.60 : 149,063.40 = 88,100.40 : x
  2. Step 2: Convert to fraction form
    99,375.60/149,063.40 = 88,100.40/x
  3. Step 3: Cross multiply
    99,375.60x = 149,063.40 × 88,100.40
  4. Step 4: Simplify right side
    99,375.60x = 13,132,545,165.36
  5. Step 5: Solve for x
    x = 13,132,545,165.36/99,375.60
  6. Step 6: Final answer
    x = 132,150.60

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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.