Home / 120,249.44-180,382.08-31,505.12

Finding the Fourth Proportional to 120,249.44, 180,382.08 and 31,505.12

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Solution

The fourth proportional to 120,249.44, 180,382.08 and 31,505.12 is: 47,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,249.44 : 180,382.08 = 31,505.12 : x
  2. Step 2: Convert to fraction form
    120,249.44/180,382.08 = 31,505.12/x
  3. Step 3: Cross multiply
    120,249.44x = 180,382.08 × 31,505.12
  4. Step 4: Simplify right side
    120,249.44x = 5,682,959,076.25
  5. Step 5: Solve for x
    x = 5,682,959,076.25/120,249.44
  6. Step 6: Final answer
    x = 47,259.76

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1.5x scale

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.