Home / 168,939.72-253,142.82-137,195.31

Finding the Fourth Proportional to 168,939.72, 253,142.82 and 137,195.31

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Solution

The fourth proportional to 168,939.72, 253,142.82 and 137,195.31 is: 205,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,939.72 : 253,142.82 = 137,195.31 : x
  2. Step 2: Convert to fraction form
    168,939.72/253,142.82 = 137,195.31/x
  3. Step 3: Cross multiply
    168,939.72x = 253,142.82 × 137,195.31
  4. Step 4: Simplify right side
    168,939.72x = 34,730,007,664.17
  5. Step 5: Solve for x
    x = 34,730,007,664.17/168,939.72
  6. Step 6: Final answer
    x = 205,576.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.