Home / 165,227.78-228,016.41-89,777.54

Finding the Fourth Proportional to 165,227.78, 228,016.41 and 89,777.54

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Solution

The fourth proportional to 165,227.78, 228,016.41 and 89,777.54 is: 123,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,227.78 : 228,016.41 = 89,777.54 : x
  2. Step 2: Convert to fraction form
    165,227.78/228,016.41 = 89,777.54/x
  3. Step 3: Cross multiply
    165,227.78x = 228,016.41 × 89,777.54
  4. Step 4: Simplify right side
    165,227.78x = 20,470,752,369.43
  5. Step 5: Solve for x
    x = 20,470,752,369.43/165,227.78
  6. Step 6: Final answer
    x = 123,894.13

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1.5x scale

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.