Home / 166,287.78-229,472.33-90,836.28

Finding the Fourth Proportional to 166,287.78, 229,472.33 and 90,836.28

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Solution

The fourth proportional to 166,287.78, 229,472.33 and 90,836.28 is: 125,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,287.78 : 229,472.33 = 90,836.28 : x
  2. Step 2: Convert to fraction form
    166,287.78/229,472.33 = 90,836.28/x
  3. Step 3: Cross multiply
    166,287.78x = 229,472.33 × 90,836.28
  4. Step 4: Simplify right side
    166,287.78x = 20,844,412,365.95
  5. Step 5: Solve for x
    x = 20,844,412,365.95/166,287.78
  6. Step 6: Final answer
    x = 125,351.44

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1.5x scale

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.