Home / 166,338.50-229,552.80-90,891.86

Finding the Fourth Proportional to 166,338.50, 229,552.80 and 90,891.86

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Solution

The fourth proportional to 166,338.50, 229,552.80 and 90,891.86 is: 125,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,338.50 : 229,552.80 = 90,891.86 : x
  2. Step 2: Convert to fraction form
    166,338.50/229,552.80 = 90,891.86/x
  3. Step 3: Cross multiply
    166,338.50x = 229,552.80 × 90,891.86
  4. Step 4: Simplify right side
    166,338.50x = 20,864,480,960.21
  5. Step 5: Solve for x
    x = 20,864,480,960.21/166,338.50
  6. Step 6: Final answer
    x = 125,433.87

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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.