Home / 165,272.76-228,078.16-89,821.26

Finding the Fourth Proportional to 165,272.76, 228,078.16 and 89,821.26

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Solution

The fourth proportional to 165,272.76, 228,078.16 and 89,821.26 is: 123,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,272.76 : 228,078.16 = 89,821.26 : x
  2. Step 2: Convert to fraction form
    165,272.76/228,078.16 = 89,821.26/x
  3. Step 3: Cross multiply
    165,272.76x = 228,078.16 × 89,821.26
  4. Step 4: Simplify right side
    165,272.76x = 20,486,267,709.68
  5. Step 5: Solve for x
    x = 20,486,267,709.68/165,272.76
  6. Step 6: Final answer
    x = 123,954.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.