Home / 143,984.50-198,698.88-80,326.42

Finding the Fourth Proportional to 143,984.50, 198,698.88 and 80,326.42

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Solution

The fourth proportional to 143,984.50, 198,698.88 and 80,326.42 is: 110,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,984.50 : 198,698.88 = 80,326.42 : x
  2. Step 2: Convert to fraction form
    143,984.50/198,698.88 = 80,326.42/x
  3. Step 3: Cross multiply
    143,984.50x = 198,698.88 × 80,326.42
  4. Step 4: Simplify right side
    143,984.50x = 15,960,769,688.41
  5. Step 5: Solve for x
    x = 15,960,769,688.41/143,984.50
  6. Step 6: Final answer
    x = 110,850.61

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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.