Home / 119,788.50-165,308.91-66,074.97

Finding the Fourth Proportional to 119,788.50, 165,308.91 and 66,074.97

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Solution

The fourth proportional to 119,788.50, 165,308.91 and 66,074.97 is: 91,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,788.50 : 165,308.91 = 66,074.97 : x
  2. Step 2: Convert to fraction form
    119,788.50/165,308.91 = 66,074.97/x
  3. Step 3: Cross multiply
    119,788.50x = 165,308.91 × 66,074.97
  4. Step 4: Simplify right side
    119,788.50x = 10,922,781,268.98
  5. Step 5: Solve for x
    x = 10,922,781,268.98/119,788.50
  6. Step 6: Final answer
    x = 91,183.89

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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.