Home / 149,397.26-206,168.22-81,414.21

Finding the Fourth Proportional to 149,397.26, 206,168.22 and 81,414.21

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Solution

The fourth proportional to 149,397.26, 206,168.22 and 81,414.21 is: 112,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,397.26 : 206,168.22 = 81,414.21 : x
  2. Step 2: Convert to fraction form
    149,397.26/206,168.22 = 81,414.21/x
  3. Step 3: Cross multiply
    149,397.26x = 206,168.22 × 81,414.21
  4. Step 4: Simplify right side
    149,397.26x = 16,785,021,524.03
  5. Step 5: Solve for x
    x = 16,785,021,524.03/149,397.26
  6. Step 6: Final answer
    x = 112,351.60

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1.5x scale

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.