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Finding the Fourth Proportional to 165,173.12, 247,759.68 and 66,608

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Solution

The fourth proportional to 165,173.12, 247,759.68 and 66,608 is: 99,912

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,173.12 : 247,759.68 = 66,608 : x
  2. Step 2: Convert to fraction form
    165,173.12/247,759.68 = 66,608/x
  3. Step 3: Cross multiply
    165,173.12x = 247,759.68 × 66,608
  4. Step 4: Simplify right side
    165,173.12x = 16,502,776,765.44
  5. Step 5: Solve for x
    x = 16,502,776,765.44/165,173.12
  6. Step 6: Final answer
    x = 99,912

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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.