Home / 143,471.19-197,991.91-82,216.16

Finding the Fourth Proportional to 143,471.19, 197,991.91 and 82,216.16

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Solution

The fourth proportional to 143,471.19, 197,991.91 and 82,216.16 is: 113,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,471.19 : 197,991.91 = 82,216.16 : x
  2. Step 2: Convert to fraction form
    143,471.19/197,991.91 = 82,216.16/x
  3. Step 3: Cross multiply
    143,471.19x = 197,991.91 × 82,216.16
  4. Step 4: Simplify right side
    143,471.19x = 16,278,135,043.33
  5. Step 5: Solve for x
    x = 16,278,135,043.33/143,471.19
  6. Step 6: Final answer
    x = 113,459.26

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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.