Home / 165,265.30-247,724.67-80,909.14

Finding the Fourth Proportional to 165,265.30, 247,724.67 and 80,909.14

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Solution

The fourth proportional to 165,265.30, 247,724.67 and 80,909.14 is: 121,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,265.30 : 247,724.67 = 80,909.14 : x
  2. Step 2: Convert to fraction form
    165,265.30/247,724.67 = 80,909.14/x
  3. Step 3: Cross multiply
    165,265.30x = 247,724.67 × 80,909.14
  4. Step 4: Simplify right side
    165,265.30x = 20,043,190,006.48
  5. Step 5: Solve for x
    x = 20,043,190,006.48/165,265.30
  6. Step 6: Final answer
    x = 121,278.88

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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.