Home / 143,839.62-198,491.46-80,165.12

Finding the Fourth Proportional to 143,839.62, 198,491.46 and 80,165.12

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Solution

The fourth proportional to 143,839.62, 198,491.46 and 80,165.12 is: 110,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,839.62 : 198,491.46 = 80,165.12 : x
  2. Step 2: Convert to fraction form
    143,839.62/198,491.46 = 80,165.12/x
  3. Step 3: Cross multiply
    143,839.62x = 198,491.46 × 80,165.12
  4. Step 4: Simplify right side
    143,839.62x = 15,912,091,709.88
  5. Step 5: Solve for x
    x = 15,912,091,709.88/143,839.62
  6. Step 6: Final answer
    x = 110,623.84

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1.5x scale

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.