Home / 166,164.76-229,306.20-90,713.26

Finding the Fourth Proportional to 166,164.76, 229,306.20 and 90,713.26

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Solution

The fourth proportional to 166,164.76, 229,306.20 and 90,713.26 is: 125,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,164.76 : 229,306.20 = 90,713.26 : x
  2. Step 2: Convert to fraction form
    166,164.76/229,306.20 = 90,713.26/x
  3. Step 3: Cross multiply
    166,164.76x = 229,306.20 × 90,713.26
  4. Step 4: Simplify right side
    166,164.76x = 20,801,112,940.21
  5. Step 5: Solve for x
    x = 20,801,112,940.21/166,164.76
  6. Step 6: Final answer
    x = 125,183.66

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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.