Home / 120,104.73-165,747.92-66,394.71

Finding the Fourth Proportional to 120,104.73, 165,747.92 and 66,394.71

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Solution

The fourth proportional to 120,104.73, 165,747.92 and 66,394.71 is: 91,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,104.73 : 165,747.92 = 66,394.71 : x
  2. Step 2: Convert to fraction form
    120,104.73/165,747.92 = 66,394.71/x
  3. Step 3: Cross multiply
    120,104.73x = 165,747.92 × 66,394.71
  4. Step 4: Simplify right side
    120,104.73x = 11,004,784,749.53
  5. Step 5: Solve for x
    x = 11,004,784,749.53/120,104.73
  6. Step 6: Final answer
    x = 91,626.57

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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.