Home / 165,514.24-248,123.70-137,662.78

Finding the Fourth Proportional to 165,514.24, 248,123.70 and 137,662.78

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Solution

The fourth proportional to 165,514.24, 248,123.70 and 137,662.78 is: 206,371.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,514.24 : 248,123.70 = 137,662.78 : x
  2. Step 2: Convert to fraction form
    165,514.24/248,123.70 = 137,662.78/x
  3. Step 3: Cross multiply
    165,514.24x = 248,123.70 × 137,662.78
  4. Step 4: Simplify right side
    165,514.24x = 34,157,398,325.89
  5. Step 5: Solve for x
    x = 34,157,398,325.89/165,514.24
  6. Step 6: Final answer
    x = 206,371.36

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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.