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Finding the Fourth Proportional to 99,805.60, 149,729.20 and 33,266.40

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Solution

The fourth proportional to 99,805.60, 149,729.20 and 33,266.40 is: 49,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,805.60 : 149,729.20 = 33,266.40 : x
  2. Step 2: Convert to fraction form
    99,805.60/149,729.20 = 33,266.40/x
  3. Step 3: Cross multiply
    99,805.60x = 149,729.20 × 33,266.40
  4. Step 4: Simplify right side
    99,805.60x = 4,980,951,458.88
  5. Step 5: Solve for x
    x = 4,980,951,458.88/99,805.60
  6. Step 6: Final answer
    x = 49,906.53

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1.5x scale

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.