Home / 111,261.85-166,842.87-66,304.42

Finding the Fourth Proportional to 111,261.85, 166,842.87 and 66,304.42

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Solution

The fourth proportional to 111,261.85, 166,842.87 and 66,304.42 is: 99,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,261.85 : 166,842.87 = 66,304.42 : x
  2. Step 2: Convert to fraction form
    111,261.85/166,842.87 = 66,304.42/x
  3. Step 3: Cross multiply
    111,261.85x = 166,842.87 × 66,304.42
  4. Step 4: Simplify right side
    111,261.85x = 11,062,419,726.49
  5. Step 5: Solve for x
    x = 11,062,419,726.49/111,261.85
  6. Step 6: Final answer
    x = 99,426.89

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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.