Home / 203,855.03-281,321.64-113,212.50

Finding the Fourth Proportional to 203,855.03, 281,321.64 and 113,212.50

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Solution

The fourth proportional to 203,855.03, 281,321.64 and 113,212.50 is: 156,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,855.03 : 281,321.64 = 113,212.50 : x
  2. Step 2: Convert to fraction form
    203,855.03/281,321.64 = 113,212.50/x
  3. Step 3: Cross multiply
    203,855.03x = 281,321.64 × 113,212.50
  4. Step 4: Simplify right side
    203,855.03x = 31,849,126,168.50
  5. Step 5: Solve for x
    x = 31,849,126,168.50/203,855.03
  6. Step 6: Final answer
    x = 156,234.19

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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.