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Finding the Fourth Proportional to 111,123.55, 166,668.40 and 36,243.59

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Solution

The fourth proportional to 111,123.55, 166,668.40 and 36,243.59 is: 54,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123.55 : 166,668.40 = 36,243.59 : x
  2. Step 2: Convert to fraction form
    111,123.55/166,668.40 = 36,243.59/x
  3. Step 3: Cross multiply
    111,123.55x = 166,668.40 × 36,243.59
  4. Step 4: Simplify right side
    111,123.55x = 6,040,660,367.52
  5. Step 5: Solve for x
    x = 6,040,660,367.52/111,123.55
  6. Step 6: Final answer
    x = 54,359.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.