Home / 180,118.70-270,331.65-80,432.30

Finding the Fourth Proportional to 180,118.70, 270,331.65 and 80,432.30

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Solution

The fourth proportional to 180,118.70, 270,331.65 and 80,432.30 is: 120,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,118.70 : 270,331.65 = 80,432.30 : x
  2. Step 2: Convert to fraction form
    180,118.70/270,331.65 = 80,432.30/x
  3. Step 3: Cross multiply
    180,118.70x = 270,331.65 × 80,432.30
  4. Step 4: Simplify right side
    180,118.70x = 21,743,396,372.30
  5. Step 5: Solve for x
    x = 21,743,396,372.30/180,118.70
  6. Step 6: Final answer
    x = 120,717.04

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1.5x scale

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.