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Finding the Fourth Proportional to 165,102.40, 247,570.44 and 80,868.88

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Solution

The fourth proportional to 165,102.40, 247,570.44 and 80,868.88 is: 121,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,102.40 : 247,570.44 = 80,868.88 : x
  2. Step 2: Convert to fraction form
    165,102.40/247,570.44 = 80,868.88/x
  3. Step 3: Cross multiply
    165,102.40x = 247,570.44 × 80,868.88
  4. Step 4: Simplify right side
    165,102.40x = 20,020,744,203.91
  5. Step 5: Solve for x
    x = 20,020,744,203.91/165,102.40
  6. Step 6: Final answer
    x = 121,262.59

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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.