Home / 143,849.55-198,515.00-80,180.49

Finding the Fourth Proportional to 143,849.55, 198,515.00 and 80,180.49

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Solution

The fourth proportional to 143,849.55, 198,515.00 and 80,180.49 is: 110,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,849.55 : 198,515.00 = 80,180.49 : x
  2. Step 2: Convert to fraction form
    143,849.55/198,515.00 = 80,180.49/x
  3. Step 3: Cross multiply
    143,849.55x = 198,515.00 × 80,180.49
  4. Step 4: Simplify right side
    143,849.55x = 15,917,029,571.45
  5. Step 5: Solve for x
    x = 15,917,029,571.45/143,849.55
  6. Step 6: Final answer
    x = 110,650.53

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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.