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Finding the Fourth Proportional to 111,304.88, 166,845.54 and 55,185.78

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Solution

The fourth proportional to 111,304.88, 166,845.54 and 55,185.78 is: 82,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,304.88 : 166,845.54 = 55,185.78 : x
  2. Step 2: Convert to fraction form
    111,304.88/166,845.54 = 55,185.78/x
  3. Step 3: Cross multiply
    111,304.88x = 166,845.54 × 55,185.78
  4. Step 4: Simplify right side
    111,304.88x = 9,207,501,264.42
  5. Step 5: Solve for x
    x = 9,207,501,264.42/111,304.88
  6. Step 6: Final answer
    x = 82,723.25

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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.