Home / 143,735.82-198,355.68-80,075.88

Finding the Fourth Proportional to 143,735.82, 198,355.68 and 80,075.88

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Solution

The fourth proportional to 143,735.82, 198,355.68 and 80,075.88 is: 110,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,735.82 : 198,355.68 = 80,075.88 : x
  2. Step 2: Convert to fraction form
    143,735.82/198,355.68 = 80,075.88/x
  3. Step 3: Cross multiply
    143,735.82x = 198,355.68 × 80,075.88
  4. Step 4: Simplify right side
    143,735.82x = 15,883,505,629.00
  5. Step 5: Solve for x
    x = 15,883,505,629.00/143,735.82
  6. Step 6: Final answer
    x = 110,504.85

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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.