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Finding the Fourth Proportional to 119,819.60, 165,351.60 and 66,104.60

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Solution

The fourth proportional to 119,819.60, 165,351.60 and 66,104.60 is: 91,224.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,819.60 : 165,351.60 = 66,104.60 : x
  2. Step 2: Convert to fraction form
    119,819.60/165,351.60 = 66,104.60/x
  3. Step 3: Cross multiply
    119,819.60x = 165,351.60 × 66,104.60
  4. Step 4: Simplify right side
    119,819.60x = 10,930,500,550.60
  5. Step 5: Solve for x
    x = 10,930,500,550.60/119,819.60
  6. Step 6: Final answer
    x = 91,224.65

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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.