Home / 149,180.28-205,869.12-82,112.28

Finding the Fourth Proportional to 149,180.28, 205,869.12 and 82,112.28

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Solution

The fourth proportional to 149,180.28, 205,869.12 and 82,112.28 is: 113,315.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,180.28 : 205,869.12 = 82,112.28 : x
  2. Step 2: Convert to fraction form
    149,180.28/205,869.12 = 82,112.28/x
  3. Step 3: Cross multiply
    149,180.28x = 205,869.12 × 82,112.28
  4. Step 4: Simplify right side
    149,180.28x = 16,904,382,824.79
  5. Step 5: Solve for x
    x = 16,904,382,824.79/149,180.28
  6. Step 6: Final answer
    x = 113,315.13

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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.