Home / 203,769.88-281,188.32-113,118.68

Finding the Fourth Proportional to 203,769.88, 281,188.32 and 113,118.68

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Solution

The fourth proportional to 203,769.88, 281,188.32 and 113,118.68 is: 156,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,769.88 : 281,188.32 = 113,118.68 : x
  2. Step 2: Convert to fraction form
    203,769.88/281,188.32 = 113,118.68/x
  3. Step 3: Cross multiply
    203,769.88x = 281,188.32 × 113,118.68
  4. Step 4: Simplify right side
    203,769.88x = 31,807,651,589.82
  5. Step 5: Solve for x
    x = 31,807,651,589.82/203,769.88
  6. Step 6: Final answer
    x = 156,095.94

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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.