Home / 119,936.49-165,512.60-66,221.61

Finding the Fourth Proportional to 119,936.49, 165,512.60 and 66,221.61

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Solution

The fourth proportional to 119,936.49, 165,512.60 and 66,221.61 is: 91,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,936.49 : 165,512.60 = 66,221.61 : x
  2. Step 2: Convert to fraction form
    119,936.49/165,512.60 = 66,221.61/x
  3. Step 3: Cross multiply
    119,936.49x = 165,512.60 × 66,221.61
  4. Step 4: Simplify right side
    119,936.49x = 10,960,510,847.29
  5. Step 5: Solve for x
    x = 10,960,510,847.29/119,936.49
  6. Step 6: Final answer
    x = 91,385.96

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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.