Home / 149,399.03-206,164.66-81,414.55

Finding the Fourth Proportional to 149,399.03, 206,164.66 and 81,414.55

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Solution

The fourth proportional to 149,399.03, 206,164.66 and 81,414.55 is: 112,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,399.03 : 206,164.66 = 81,414.55 : x
  2. Step 2: Convert to fraction form
    149,399.03/206,164.66 = 81,414.55/x
  3. Step 3: Cross multiply
    149,399.03x = 206,164.66 × 81,414.55
  4. Step 4: Simplify right side
    149,399.03x = 16,784,803,226.62
  5. Step 5: Solve for x
    x = 16,784,803,226.62/149,399.03
  6. Step 6: Final answer
    x = 112,348.81

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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.