Home / 166,278.90-229,463.40-90,825.78

Finding the Fourth Proportional to 166,278.90, 229,463.40 and 90,825.78

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Solution

The fourth proportional to 166,278.90, 229,463.40 and 90,825.78 is: 125,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,278.90 : 229,463.40 = 90,825.78 : x
  2. Step 2: Convert to fraction form
    166,278.90/229,463.40 = 90,825.78/x
  3. Step 3: Cross multiply
    166,278.90x = 229,463.40 × 90,825.78
  4. Step 4: Simplify right side
    166,278.90x = 20,841,192,286.45
  5. Step 5: Solve for x
    x = 20,841,192,286.45/166,278.90
  6. Step 6: Final answer
    x = 125,338.77

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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.