Home / 120,188.80-180,299.40-41,327.20

Finding the Fourth Proportional to 120,188.80, 180,299.40 and 41,327.20

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Solution

The fourth proportional to 120,188.80, 180,299.40 and 41,327.20 is: 61,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,188.80 : 180,299.40 = 41,327.20 : x
  2. Step 2: Convert to fraction form
    120,188.80/180,299.40 = 41,327.20/x
  3. Step 3: Cross multiply
    120,188.80x = 180,299.40 × 41,327.20
  4. Step 4: Simplify right side
    120,188.80x = 7,451,269,363.68
  5. Step 5: Solve for x
    x = 7,451,269,363.68/120,188.80
  6. Step 6: Final answer
    x = 61,996.37

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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.