Home / 165,788.44-228,789.76-90,336.94

Finding the Fourth Proportional to 165,788.44, 228,789.76 and 90,336.94

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Solution

The fourth proportional to 165,788.44, 228,789.76 and 90,336.94 is: 124,665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,788.44 : 228,789.76 = 90,336.94 : x
  2. Step 2: Convert to fraction form
    165,788.44/228,789.76 = 90,336.94/x
  3. Step 3: Cross multiply
    165,788.44x = 228,789.76 × 90,336.94
  4. Step 4: Simplify right side
    165,788.44x = 20,668,166,821.73
  5. Step 5: Solve for x
    x = 20,668,166,821.73/165,788.44
  6. Step 6: Final answer
    x = 124,665.91

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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.