Home / 149,902.46-206,868.12-81,922.32

Finding the Fourth Proportional to 149,902.46, 206,868.12 and 81,922.32

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Solution

The fourth proportional to 149,902.46, 206,868.12 and 81,922.32 is: 113,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,902.46 : 206,868.12 = 81,922.32 : x
  2. Step 2: Convert to fraction form
    149,902.46/206,868.12 = 81,922.32/x
  3. Step 3: Cross multiply
    149,902.46x = 206,868.12 × 81,922.32
  4. Step 4: Simplify right side
    149,902.46x = 16,947,116,324.44
  5. Step 5: Solve for x
    x = 16,947,116,324.44/149,902.46
  6. Step 6: Final answer
    x = 113,054.29

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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.