Home / 149,414.54-206,189.52-81,432.32

Finding the Fourth Proportional to 149,414.54, 206,189.52 and 81,432.32

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Solution

The fourth proportional to 149,414.54, 206,189.52 and 81,432.32 is: 112,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,414.54 : 206,189.52 = 81,432.32 : x
  2. Step 2: Convert to fraction form
    149,414.54/206,189.52 = 81,432.32/x
  3. Step 3: Cross multiply
    149,414.54x = 206,189.52 × 81,432.32
  4. Step 4: Simplify right side
    149,414.54x = 16,790,490,973.29
  5. Step 5: Solve for x
    x = 16,790,490,973.29/149,414.54
  6. Step 6: Final answer
    x = 112,375.21

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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.