Home / 203,790.30-305,408.97-114,999.90

Finding the Fourth Proportional to 203,790.30, 305,408.97 and 114,999.90

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Solution

The fourth proportional to 203,790.30, 305,408.97 and 114,999.90 is: 172,343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,790.30 : 305,408.97 = 114,999.90 : x
  2. Step 2: Convert to fraction form
    203,790.30/305,408.97 = 114,999.90/x
  3. Step 3: Cross multiply
    203,790.30x = 305,408.97 × 114,999.90
  4. Step 4: Simplify right side
    203,790.30x = 35,122,001,009.10
  5. Step 5: Solve for x
    x = 35,122,001,009.10/203,790.30
  6. Step 6: Final answer
    x = 172,343.83

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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.