Home / 166,765.78-230,135.10-90,282.85

Finding the Fourth Proportional to 166,765.78, 230,135.10 and 90,282.85

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Solution

The fourth proportional to 166,765.78, 230,135.10 and 90,282.85 is: 124,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,765.78 : 230,135.10 = 90,282.85 : x
  2. Step 2: Convert to fraction form
    166,765.78/230,135.10 = 90,282.85/x
  3. Step 3: Cross multiply
    166,765.78x = 230,135.10 × 90,282.85
  4. Step 4: Simplify right side
    166,765.78x = 20,777,251,562.36
  5. Step 5: Solve for x
    x = 20,777,251,562.36/166,765.78
  6. Step 6: Final answer
    x = 124,589.42

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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.