Home / 120,629.22-180,919.26-45,723.54

Finding the Fourth Proportional to 120,629.22, 180,919.26 and 45,723.54

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Solution

The fourth proportional to 120,629.22, 180,919.26 and 45,723.54 is: 68,576.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629.22 : 180,919.26 = 45,723.54 : x
  2. Step 2: Convert to fraction form
    120,629.22/180,919.26 = 45,723.54/x
  3. Step 3: Cross multiply
    120,629.22x = 180,919.26 × 45,723.54
  4. Step 4: Simplify right side
    120,629.22x = 8,272,269,021.38
  5. Step 5: Solve for x
    x = 8,272,269,021.38/120,629.22
  6. Step 6: Final answer
    x = 68,576.00

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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.