Home / 165,513.24-248,122.20-137,661.78

Finding the Fourth Proportional to 165,513.24, 248,122.20 and 137,661.78

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Solution

The fourth proportional to 165,513.24, 248,122.20 and 137,661.78 is: 206,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,513.24 : 248,122.20 = 137,661.78 : x
  2. Step 2: Convert to fraction form
    165,513.24/248,122.20 = 137,661.78/x
  3. Step 3: Cross multiply
    165,513.24x = 248,122.20 × 137,661.78
  4. Step 4: Simplify right side
    165,513.24x = 34,156,943,709.52
  5. Step 5: Solve for x
    x = 34,156,943,709.52/165,513.24
  6. Step 6: Final answer
    x = 206,369.86

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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.