Home / 165,912.48-248,948.82-81,626.94

Finding the Fourth Proportional to 165,912.48, 248,948.82 and 81,626.94

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Solution

The fourth proportional to 165,912.48, 248,948.82 and 81,626.94 is: 122,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,912.48 : 248,948.82 = 81,626.94 : x
  2. Step 2: Convert to fraction form
    165,912.48/248,948.82 = 81,626.94/x
  3. Step 3: Cross multiply
    165,912.48x = 248,948.82 × 81,626.94
  4. Step 4: Simplify right side
    165,912.48x = 20,320,930,393.21
  5. Step 5: Solve for x
    x = 20,320,930,393.21/165,912.48
  6. Step 6: Final answer
    x = 122,479.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.