Home / 165,081.44-247,589.40-80,805.44

Finding the Fourth Proportional to 165,081.44, 247,589.40 and 80,805.44

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Solution

The fourth proportional to 165,081.44, 247,589.40 and 80,805.44 is: 121,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,081.44 : 247,589.40 = 80,805.44 : x
  2. Step 2: Convert to fraction form
    165,081.44/247,589.40 = 80,805.44/x
  3. Step 3: Cross multiply
    165,081.44x = 247,589.40 × 80,805.44
  4. Step 4: Simplify right side
    165,081.44x = 20,006,570,406.34
  5. Step 5: Solve for x
    x = 20,006,570,406.34/165,081.44
  6. Step 6: Final answer
    x = 121,192.12

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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.