Home / 234,939.96-324,069.68-139,379

Finding the Fourth Proportional to 234,939.96, 324,069.68 and 139,379

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Solution

The fourth proportional to 234,939.96, 324,069.68 and 139,379 is: 192,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,939.96 : 324,069.68 = 139,379 : x
  2. Step 2: Convert to fraction form
    234,939.96/324,069.68 = 139,379/x
  3. Step 3: Cross multiply
    234,939.96x = 324,069.68 × 139,379
  4. Step 4: Simplify right side
    234,939.96x = 45,168,507,928.72
  5. Step 5: Solve for x
    x = 45,168,507,928.72/234,939.96
  6. Step 6: Final answer
    x = 192,255.54

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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.