Home / 143,185.06-197,583.81-82,759.61

Finding the Fourth Proportional to 143,185.06, 197,583.81 and 82,759.61

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Solution

The fourth proportional to 143,185.06, 197,583.81 and 82,759.61 is: 114,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,185.06 : 197,583.81 = 82,759.61 : x
  2. Step 2: Convert to fraction form
    143,185.06/197,583.81 = 82,759.61/x
  3. Step 3: Cross multiply
    143,185.06x = 197,583.81 × 82,759.61
  4. Step 4: Simplify right side
    143,185.06x = 16,351,959,057.91
  5. Step 5: Solve for x
    x = 16,351,959,057.91/143,185.06
  6. Step 6: Final answer
    x = 114,201.58

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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.