Home / 179,669.20-269,657.40-79,982.80

Finding the Fourth Proportional to 179,669.20, 269,657.40 and 79,982.80

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Solution

The fourth proportional to 179,669.20, 269,657.40 and 79,982.80 is: 120,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,669.20 : 269,657.40 = 79,982.80 : x
  2. Step 2: Convert to fraction form
    179,669.20/269,657.40 = 79,982.80/x
  3. Step 3: Cross multiply
    179,669.20x = 269,657.40 × 79,982.80
  4. Step 4: Simplify right side
    179,669.20x = 21,567,953,892.72
  5. Step 5: Solve for x
    x = 21,567,953,892.72/179,669.20
  6. Step 6: Final answer
    x = 120,042.58

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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.