Home / 168,371.36-252,439.92-85,208.48

Finding the Fourth Proportional to 168,371.36, 252,439.92 and 85,208.48

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Solution

The fourth proportional to 168,371.36, 252,439.92 and 85,208.48 is: 127,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,371.36 : 252,439.92 = 85,208.48 : x
  2. Step 2: Convert to fraction form
    168,371.36/252,439.92 = 85,208.48/x
  3. Step 3: Cross multiply
    168,371.36x = 252,439.92 × 85,208.48
  4. Step 4: Simplify right side
    168,371.36x = 21,510,021,874.52
  5. Step 5: Solve for x
    x = 21,510,021,874.52/168,371.36
  6. Step 6: Final answer
    x = 127,753.45

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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.