Home / 133,049.10-199,573.65-103,305.90

Finding the Fourth Proportional to 133,049.10, 199,573.65 and 103,305.90

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Solution

The fourth proportional to 133,049.10, 199,573.65 and 103,305.90 is: 154,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,049.10 : 199,573.65 = 103,305.90 : x
  2. Step 2: Convert to fraction form
    133,049.10/199,573.65 = 103,305.90/x
  3. Step 3: Cross multiply
    133,049.10x = 199,573.65 × 103,305.90
  4. Step 4: Simplify right side
    133,049.10x = 20,617,135,529.54
  5. Step 5: Solve for x
    x = 20,617,135,529.54/133,049.10
  6. Step 6: Final answer
    x = 154,958.85

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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.