Home / 165,932.90-228,987.32-90,481.40

Finding the Fourth Proportional to 165,932.90, 228,987.32 and 90,481.40

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Solution

The fourth proportional to 165,932.90, 228,987.32 and 90,481.40 is: 124,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,932.90 : 228,987.32 = 90,481.40 : x
  2. Step 2: Convert to fraction form
    165,932.90/228,987.32 = 90,481.40/x
  3. Step 3: Cross multiply
    165,932.90x = 228,987.32 × 90,481.40
  4. Step 4: Simplify right side
    165,932.90x = 20,719,093,295.85
  5. Step 5: Solve for x
    x = 20,719,093,295.85/165,932.90
  6. Step 6: Final answer
    x = 124,864.29

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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.