Home / 165,854.25-228,879.27-90,402.75

Finding the Fourth Proportional to 165,854.25, 228,879.27 and 90,402.75

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Solution

The fourth proportional to 165,854.25, 228,879.27 and 90,402.75 is: 124,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,854.25 : 228,879.27 = 90,402.75 : x
  2. Step 2: Convert to fraction form
    165,854.25/228,879.27 = 90,402.75/x
  3. Step 3: Cross multiply
    165,854.25x = 228,879.27 × 90,402.75
  4. Step 4: Simplify right side
    165,854.25x = 20,691,315,425.99
  5. Step 5: Solve for x
    x = 20,691,315,425.99/165,854.25
  6. Step 6: Final answer
    x = 124,756.02

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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.