Home / 119,664.34-165,137.79-65,949.49

Finding the Fourth Proportional to 119,664.34, 165,137.79 and 65,949.49

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Solution

The fourth proportional to 119,664.34, 165,137.79 and 65,949.49 is: 91,010.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,664.34 : 165,137.79 = 65,949.49 : x
  2. Step 2: Convert to fraction form
    119,664.34/165,137.79 = 65,949.49/x
  3. Step 3: Cross multiply
    119,664.34x = 165,137.79 × 65,949.49
  4. Step 4: Simplify right side
    119,664.34x = 10,890,753,112.99
  5. Step 5: Solve for x
    x = 10,890,753,112.99/119,664.34
  6. Step 6: Final answer
    x = 91,010.85

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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.