Home / 165,758.08-228,751.68-90,313.60

Finding the Fourth Proportional to 165,758.08, 228,751.68 and 90,313.60

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Solution

The fourth proportional to 165,758.08, 228,751.68 and 90,313.60 is: 124,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,758.08 : 228,751.68 = 90,313.60 : x
  2. Step 2: Convert to fraction form
    165,758.08/228,751.68 = 90,313.60/x
  3. Step 3: Cross multiply
    165,758.08x = 228,751.68 × 90,313.60
  4. Step 4: Simplify right side
    165,758.08x = 20,659,387,726.85
  5. Step 5: Solve for x
    x = 20,659,387,726.85/165,758.08
  6. Step 6: Final answer
    x = 124,635.78

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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.