Home / 180,769.12-271,228-79,515.04

Finding the Fourth Proportional to 180,769.12, 271,228 and 79,515.04

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Solution

The fourth proportional to 180,769.12, 271,228 and 79,515.04 is: 119,305.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,769.12 : 271,228 = 79,515.04 : x
  2. Step 2: Convert to fraction form
    180,769.12/271,228 = 79,515.04/x
  3. Step 3: Cross multiply
    180,769.12x = 271,228 × 79,515.04
  4. Step 4: Simplify right side
    180,769.12x = 21,566,705,269.12
  5. Step 5: Solve for x
    x = 21,566,705,269.12/180,769.12
  6. Step 6: Final answer
    x = 119,305.25

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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.