Home / 149,179.43-205,872.69-81,198.90

Finding the Fourth Proportional to 149,179.43, 205,872.69 and 81,198.90

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Solution

The fourth proportional to 149,179.43, 205,872.69 and 81,198.90 is: 112,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,179.43 : 205,872.69 = 81,198.90 : x
  2. Step 2: Convert to fraction form
    149,179.43/205,872.69 = 81,198.90/x
  3. Step 3: Cross multiply
    149,179.43x = 205,872.69 × 81,198.90
  4. Step 4: Simplify right side
    149,179.43x = 16,716,634,532.68
  5. Step 5: Solve for x
    x = 16,716,634,532.68/149,179.43
  6. Step 6: Final answer
    x = 112,057.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.