Home / 143,370.62-197,829.78-82,107.28

Finding the Fourth Proportional to 143,370.62, 197,829.78 and 82,107.28

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Solution

The fourth proportional to 143,370.62, 197,829.78 and 82,107.28 is: 113,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,370.62 : 197,829.78 = 82,107.28 : x
  2. Step 2: Convert to fraction form
    143,370.62/197,829.78 = 82,107.28/x
  3. Step 3: Cross multiply
    143,370.62x = 197,829.78 × 82,107.28
  4. Step 4: Simplify right side
    143,370.62x = 16,243,265,138.80
  5. Step 5: Solve for x
    x = 16,243,265,138.80/143,370.62
  6. Step 6: Final answer
    x = 113,295.63

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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.