Home / 165,738.27-228,718.40-90,286.59

Finding the Fourth Proportional to 165,738.27, 228,718.40 and 90,286.59

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Solution

The fourth proportional to 165,738.27, 228,718.40 and 90,286.59 is: 124,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,738.27 : 228,718.40 = 90,286.59 : x
  2. Step 2: Convert to fraction form
    165,738.27/228,718.40 = 90,286.59/x
  3. Step 3: Cross multiply
    165,738.27x = 228,718.40 × 90,286.59
  4. Step 4: Simplify right side
    165,738.27x = 20,650,203,954.82
  5. Step 5: Solve for x
    x = 20,650,203,954.82/165,738.27
  6. Step 6: Final answer
    x = 124,595.27

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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.