Home / 120,526.25-180,791.19-45,610.56

Finding the Fourth Proportional to 120,526.25, 180,791.19 and 45,610.56

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Solution

The fourth proportional to 120,526.25, 180,791.19 and 45,610.56 is: 68,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.25 : 180,791.19 = 45,610.56 : x
  2. Step 2: Convert to fraction form
    120,526.25/180,791.19 = 45,610.56/x
  3. Step 3: Cross multiply
    120,526.25x = 180,791.19 × 45,610.56
  4. Step 4: Simplify right side
    120,526.25x = 8,245,987,418.97
  5. Step 5: Solve for x
    x = 8,245,987,418.97/120,526.25
  6. Step 6: Final answer
    x = 68,416.53

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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.