Home / 140,839.72-194,355.46-77,174.44

Finding the Fourth Proportional to 140,839.72, 194,355.46 and 77,174.44

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Solution

The fourth proportional to 140,839.72, 194,355.46 and 77,174.44 is: 106,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,839.72 : 194,355.46 = 77,174.44 : x
  2. Step 2: Convert to fraction form
    140,839.72/194,355.46 = 77,174.44/x
  3. Step 3: Cross multiply
    140,839.72x = 194,355.46 × 77,174.44
  4. Step 4: Simplify right side
    140,839.72x = 14,999,273,786.44
  5. Step 5: Solve for x
    x = 14,999,273,786.44/140,839.72
  6. Step 6: Final answer
    x = 106,498.89

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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.