Home / 166,132.20-229,262.77-90,680.70

Finding the Fourth Proportional to 166,132.20, 229,262.77 and 90,680.70

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Solution

The fourth proportional to 166,132.20, 229,262.77 and 90,680.70 is: 125,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,132.20 : 229,262.77 = 90,680.70 : x
  2. Step 2: Convert to fraction form
    166,132.20/229,262.77 = 90,680.70/x
  3. Step 3: Cross multiply
    166,132.20x = 229,262.77 × 90,680.70
  4. Step 4: Simplify right side
    166,132.20x = 20,789,708,467.54
  5. Step 5: Solve for x
    x = 20,789,708,467.54/166,132.20
  6. Step 6: Final answer
    x = 125,139.55

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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.