Home / 234,941.72-324,072.09-139,380.75

Finding the Fourth Proportional to 234,941.72, 324,072.09 and 139,380.75

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Solution

The fourth proportional to 234,941.72, 324,072.09 and 139,380.75 is: 192,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,941.72 : 324,072.09 = 139,380.75 : x
  2. Step 2: Convert to fraction form
    234,941.72/324,072.09 = 139,380.75/x
  3. Step 3: Cross multiply
    234,941.72x = 324,072.09 × 139,380.75
  4. Step 4: Simplify right side
    234,941.72x = 45,169,410,958.27
  5. Step 5: Solve for x
    x = 45,169,410,958.27/234,941.72
  6. Step 6: Final answer
    x = 192,257.94

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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.