Home / 143,725.19-198,342.81-82,481.36

Finding the Fourth Proportional to 143,725.19, 198,342.81 and 82,481.36

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Solution

The fourth proportional to 143,725.19, 198,342.81 and 82,481.36 is: 113,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,725.19 : 198,342.81 = 82,481.36 : x
  2. Step 2: Convert to fraction form
    143,725.19/198,342.81 = 82,481.36/x
  3. Step 3: Cross multiply
    143,725.19x = 198,342.81 × 82,481.36
  4. Step 4: Simplify right side
    143,725.19x = 16,359,583,723.31
  5. Step 5: Solve for x
    x = 16,359,583,723.31/143,725.19
  6. Step 6: Final answer
    x = 113,825.45

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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.