Home / 166,317.38-229,517.98-90,865.88

Finding the Fourth Proportional to 166,317.38, 229,517.98 and 90,865.88

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Solution

The fourth proportional to 166,317.38, 229,517.98 and 90,865.88 is: 125,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,317.38 : 229,517.98 = 90,865.88 : x
  2. Step 2: Convert to fraction form
    166,317.38/229,517.98 = 90,865.88/x
  3. Step 3: Cross multiply
    166,317.38x = 229,517.98 × 90,865.88
  4. Step 4: Simplify right side
    166,317.38x = 20,855,351,853.77
  5. Step 5: Solve for x
    x = 20,855,351,853.77/166,317.38
  6. Step 6: Final answer
    x = 125,394.91

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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.