Home / 135,912.44-203,787.90-51,678.76

Finding the Fourth Proportional to 135,912.44, 203,787.90 and 51,678.76

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Solution

The fourth proportional to 135,912.44, 203,787.90 and 51,678.76 is: 77,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,912.44 : 203,787.90 = 51,678.76 : x
  2. Step 2: Convert to fraction form
    135,912.44/203,787.90 = 51,678.76/x
  3. Step 3: Cross multiply
    135,912.44x = 203,787.90 × 51,678.76
  4. Step 4: Simplify right side
    135,912.44x = 10,531,505,975.00
  5. Step 5: Solve for x
    x = 10,531,505,975.00/135,912.44
  6. Step 6: Final answer
    x = 77,487.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.