Home / 119,731.76-165,217.19-66,013.59

Finding the Fourth Proportional to 119,731.76, 165,217.19 and 66,013.59

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Solution

The fourth proportional to 119,731.76, 165,217.19 and 66,013.59 is: 91,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,731.76 : 165,217.19 = 66,013.59 : x
  2. Step 2: Convert to fraction form
    119,731.76/165,217.19 = 66,013.59/x
  3. Step 3: Cross multiply
    119,731.76x = 165,217.19 × 66,013.59
  4. Step 4: Simplify right side
    119,731.76x = 10,906,579,511.54
  5. Step 5: Solve for x
    x = 10,906,579,511.54/119,731.76
  6. Step 6: Final answer
    x = 91,091.79

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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.