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Finding the Fourth Proportional to 119,893.83, 165,450.35 and 66,177.69

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Solution

The fourth proportional to 119,893.83, 165,450.35 and 66,177.69 is: 91,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,893.83 : 165,450.35 = 66,177.69 : x
  2. Step 2: Convert to fraction form
    119,893.83/165,450.35 = 66,177.69/x
  3. Step 3: Cross multiply
    119,893.83x = 165,450.35 × 66,177.69
  4. Step 4: Simplify right side
    119,893.83x = 10,949,121,972.69
  5. Step 5: Solve for x
    x = 10,949,121,972.69/119,893.83
  6. Step 6: Final answer
    x = 91,323.48

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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.