Home / 120,546.90-180,820.33-40,578.15

Finding the Fourth Proportional to 120,546.90, 180,820.33 and 40,578.15

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Solution

The fourth proportional to 120,546.90, 180,820.33 and 40,578.15 is: 60,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,546.90 : 180,820.33 = 40,578.15 : x
  2. Step 2: Convert to fraction form
    120,546.90/180,820.33 = 40,578.15/x
  3. Step 3: Cross multiply
    120,546.90x = 180,820.33 × 40,578.15
  4. Step 4: Simplify right side
    120,546.90x = 7,337,354,261.56
  5. Step 5: Solve for x
    x = 7,337,354,261.56/120,546.90
  6. Step 6: Final answer
    x = 60,867.22

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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.