Home / 136,912.44-188,943.12-76,481.04

Finding the Fourth Proportional to 136,912.44, 188,943.12 and 76,481.04

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Solution

The fourth proportional to 136,912.44, 188,943.12 and 76,481.04 is: 105,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,912.44 : 188,943.12 = 76,481.04 : x
  2. Step 2: Convert to fraction form
    136,912.44/188,943.12 = 76,481.04/x
  3. Step 3: Cross multiply
    136,912.44x = 188,943.12 × 76,481.04
  4. Step 4: Simplify right side
    136,912.44x = 14,450,566,318.44
  5. Step 5: Solve for x
    x = 14,450,566,318.44/136,912.44
  6. Step 6: Final answer
    x = 105,546.04

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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.