Home / 143,181.48-197,616.18-82,743.78

Finding the Fourth Proportional to 143,181.48, 197,616.18 and 82,743.78

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Solution

The fourth proportional to 143,181.48, 197,616.18 and 82,743.78 is: 114,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,181.48 : 197,616.18 = 82,743.78 : x
  2. Step 2: Convert to fraction form
    143,181.48/197,616.18 = 82,743.78/x
  3. Step 3: Cross multiply
    143,181.48x = 197,616.18 × 82,743.78
  4. Step 4: Simplify right side
    143,181.48x = 16,351,509,722.36
  5. Step 5: Solve for x
    x = 16,351,509,722.36/143,181.48
  6. Step 6: Final answer
    x = 114,201.29

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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.