Home / 135,933.20-203,899.80-102,755.60

Finding the Fourth Proportional to 135,933.20, 203,899.80 and 102,755.60

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Solution

The fourth proportional to 135,933.20, 203,899.80 and 102,755.60 is: 154,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,933.20 : 203,899.80 = 102,755.60 : x
  2. Step 2: Convert to fraction form
    135,933.20/203,899.80 = 102,755.60/x
  3. Step 3: Cross multiply
    135,933.20x = 203,899.80 × 102,755.60
  4. Step 4: Simplify right side
    135,933.20x = 20,951,846,288.88
  5. Step 5: Solve for x
    x = 20,951,846,288.88/135,933.20
  6. Step 6: Final answer
    x = 154,133.40

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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.