Home / 119,913.73-165,480.98-66,198.78

Finding the Fourth Proportional to 119,913.73, 165,480.98 and 66,198.78

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Solution

The fourth proportional to 119,913.73, 165,480.98 and 66,198.78 is: 91,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,913.73 : 165,480.98 = 66,198.78 : x
  2. Step 2: Convert to fraction form
    119,913.73/165,480.98 = 66,198.78/x
  3. Step 3: Cross multiply
    119,913.73x = 165,480.98 × 66,198.78
  4. Step 4: Simplify right side
    119,913.73x = 10,954,638,658.21
  5. Step 5: Solve for x
    x = 10,954,638,658.21/119,913.73
  6. Step 6: Final answer
    x = 91,354.33

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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.