Home / 143,998.30-198,713.82-80,334.46

Finding the Fourth Proportional to 143,998.30, 198,713.82 and 80,334.46

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Solution

The fourth proportional to 143,998.30, 198,713.82 and 80,334.46 is: 110,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,998.30 : 198,713.82 = 80,334.46 : x
  2. Step 2: Convert to fraction form
    143,998.30/198,713.82 = 80,334.46/x
  3. Step 3: Cross multiply
    143,998.30x = 198,713.82 × 80,334.46
  4. Step 4: Simplify right side
    143,998.30x = 15,963,567,424.24
  5. Step 5: Solve for x
    x = 15,963,567,424.24/143,998.30
  6. Step 6: Final answer
    x = 110,859.42

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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.