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Finding the Fourth Proportional to 119,910.97, 165,472.80 and 66,194.84

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Solution

The fourth proportional to 119,910.97, 165,472.80 and 66,194.84 is: 91,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,910.97 : 165,472.80 = 66,194.84 : x
  2. Step 2: Convert to fraction form
    119,910.97/165,472.80 = 66,194.84/x
  3. Step 3: Cross multiply
    119,910.97x = 165,472.80 × 66,194.84
  4. Step 4: Simplify right side
    119,910.97x = 10,953,445,520.35
  5. Step 5: Solve for x
    x = 10,953,445,520.35/119,910.97
  6. Step 6: Final answer
    x = 91,346.48

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1.5x scale

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.