Home / 143,243.43-197,664.36-82,817.96

Finding the Fourth Proportional to 143,243.43, 197,664.36 and 82,817.96

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Solution

The fourth proportional to 143,243.43, 197,664.36 and 82,817.96 is: 114,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,243.43 : 197,664.36 = 82,817.96 : x
  2. Step 2: Convert to fraction form
    143,243.43/197,664.36 = 82,817.96/x
  3. Step 3: Cross multiply
    143,243.43x = 197,664.36 × 82,817.96
  4. Step 4: Simplify right side
    143,243.43x = 16,370,158,071.58
  5. Step 5: Solve for x
    x = 16,370,158,071.58/143,243.43
  6. Step 6: Final answer
    x = 114,282.09

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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.