Home / 165,517.32-248,399.16-81,322.68

Finding the Fourth Proportional to 165,517.32, 248,399.16 and 81,322.68

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Solution

The fourth proportional to 165,517.32, 248,399.16 and 81,322.68 is: 122,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,517.32 : 248,399.16 = 81,322.68 : x
  2. Step 2: Convert to fraction form
    165,517.32/248,399.16 = 81,322.68/x
  3. Step 3: Cross multiply
    165,517.32x = 248,399.16 × 81,322.68
  4. Step 4: Simplify right side
    165,517.32x = 20,200,485,400.95
  5. Step 5: Solve for x
    x = 20,200,485,400.95/165,517.32
  6. Step 6: Final answer
    x = 122,044.54

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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.