Home / 166,231.20-229,400.88-90,781.92

Finding the Fourth Proportional to 166,231.20, 229,400.88 and 90,781.92

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Solution

The fourth proportional to 166,231.20, 229,400.88 and 90,781.92 is: 125,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,231.20 : 229,400.88 = 90,781.92 : x
  2. Step 2: Convert to fraction form
    166,231.20/229,400.88 = 90,781.92/x
  3. Step 3: Cross multiply
    166,231.20x = 229,400.88 × 90,781.92
  4. Step 4: Simplify right side
    166,231.20x = 20,825,452,336.09
  5. Step 5: Solve for x
    x = 20,825,452,336.09/166,231.20
  6. Step 6: Final answer
    x = 125,280.05

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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.