Home / 143,361.84-197,844.43-78,836.03

Finding the Fourth Proportional to 143,361.84, 197,844.43 and 78,836.03

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Solution

The fourth proportional to 143,361.84, 197,844.43 and 78,836.03 is: 108,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,361.84 : 197,844.43 = 78,836.03 : x
  2. Step 2: Convert to fraction form
    143,361.84/197,844.43 = 78,836.03/x
  3. Step 3: Cross multiply
    143,361.84x = 197,844.43 × 78,836.03
  4. Step 4: Simplify right side
    143,361.84x = 15,597,268,924.20
  5. Step 5: Solve for x
    x = 15,597,268,924.20/143,361.84
  6. Step 6: Final answer
    x = 108,796.52

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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.