Home / 140,709.53-194,179.46-76,179.44

Finding the Fourth Proportional to 140,709.53, 194,179.46 and 76,179.44

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Solution

The fourth proportional to 140,709.53, 194,179.46 and 76,179.44 is: 105,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709.53 : 194,179.46 = 76,179.44 : x
  2. Step 2: Convert to fraction form
    140,709.53/194,179.46 = 76,179.44/x
  3. Step 3: Cross multiply
    140,709.53x = 194,179.46 × 76,179.44
  4. Step 4: Simplify right side
    140,709.53x = 14,792,481,170.51
  5. Step 5: Solve for x
    x = 14,792,481,170.51/140,709.53
  6. Step 6: Final answer
    x = 105,127.79

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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.