Home / 165,786.22-228,785.07-90,334.72

Finding the Fourth Proportional to 165,786.22, 228,785.07 and 90,334.72

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Solution

The fourth proportional to 165,786.22, 228,785.07 and 90,334.72 is: 124,661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,786.22 : 228,785.07 = 90,334.72 : x
  2. Step 2: Convert to fraction form
    165,786.22/228,785.07 = 90,334.72/x
  3. Step 3: Cross multiply
    165,786.22x = 228,785.07 × 90,334.72
  4. Step 4: Simplify right side
    165,786.22x = 20,667,235,238.63
  5. Step 5: Solve for x
    x = 20,667,235,238.63/165,786.22
  6. Step 6: Final answer
    x = 124,661.96

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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.