Home / 120,539.22-180,788.18-31,793.60

Finding the Fourth Proportional to 120,539.22, 180,788.18 and 31,793.60

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Solution

The fourth proportional to 120,539.22, 180,788.18 and 31,793.60 is: 47,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,539.22 : 180,788.18 = 31,793.60 : x
  2. Step 2: Convert to fraction form
    120,539.22/180,788.18 = 31,793.60/x
  3. Step 3: Cross multiply
    120,539.22x = 180,788.18 × 31,793.60
  4. Step 4: Simplify right side
    120,539.22x = 5,747,906,016.74
  5. Step 5: Solve for x
    x = 5,747,906,016.74/120,539.22
  6. Step 6: Final answer
    x = 47,684.94

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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.