Home / 163,456.38-225,563.54-91,839.42

Finding the Fourth Proportional to 163,456.38, 225,563.54 and 91,839.42

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Solution

The fourth proportional to 163,456.38, 225,563.54 and 91,839.42 is: 126,734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,456.38 : 225,563.54 = 91,839.42 : x
  2. Step 2: Convert to fraction form
    163,456.38/225,563.54 = 91,839.42/x
  3. Step 3: Cross multiply
    163,456.38x = 225,563.54 × 91,839.42
  4. Step 4: Simplify right side
    163,456.38x = 20,715,624,227.55
  5. Step 5: Solve for x
    x = 20,715,624,227.55/163,456.38
  6. Step 6: Final answer
    x = 126,734.88

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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.