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Finding the Fourth Proportional to 146,175.90, 201,722.67 and 79,107.90

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Solution

The fourth proportional to 146,175.90, 201,722.67 and 79,107.90 is: 109,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,175.90 : 201,722.67 = 79,107.90 : x
  2. Step 2: Convert to fraction form
    146,175.90/201,722.67 = 79,107.90/x
  3. Step 3: Cross multiply
    146,175.90x = 201,722.67 × 79,107.90
  4. Step 4: Simplify right side
    146,175.90x = 15,957,856,806.09
  5. Step 5: Solve for x
    x = 15,957,856,806.09/146,175.90
  6. Step 6: Final answer
    x = 109,168.86

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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.