Home / 394,123.36-591,174.96-109,812.64

Finding the Fourth Proportional to 394,123.36, 591,174.96 and 109,812.64

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Solution

The fourth proportional to 394,123.36, 591,174.96 and 109,812.64 is: 164,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,123.36 : 591,174.96 = 109,812.64 : x
  2. Step 2: Convert to fraction form
    394,123.36/591,174.96 = 109,812.64/x
  3. Step 3: Cross multiply
    394,123.36x = 591,174.96 × 109,812.64
  4. Step 4: Simplify right side
    394,123.36x = 64,918,483,059.49
  5. Step 5: Solve for x
    x = 64,918,483,059.49/394,123.36
  6. Step 6: Final answer
    x = 164,716.15

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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.