Home / 143,936.26-198,639.89-80,273.77

Finding the Fourth Proportional to 143,936.26, 198,639.89 and 80,273.77

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Solution

The fourth proportional to 143,936.26, 198,639.89 and 80,273.77 is: 110,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,936.26 : 198,639.89 = 80,273.77 : x
  2. Step 2: Convert to fraction form
    143,936.26/198,639.89 = 80,273.77/x
  3. Step 3: Cross multiply
    143,936.26x = 198,639.89 × 80,273.77
  4. Step 4: Simplify right side
    143,936.26x = 15,945,572,842.69
  5. Step 5: Solve for x
    x = 15,945,572,842.69/143,936.26
  6. Step 6: Final answer
    x = 110,782.18

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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.