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Finding the Fourth Proportional to 146,394, 202,023.72 and 79,326

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Solution

The fourth proportional to 146,394, 202,023.72 and 79,326 is: 109,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,394 : 202,023.72 = 79,326 : x
  2. Step 2: Convert to fraction form
    146,394/202,023.72 = 79,326/x
  3. Step 3: Cross multiply
    146,394x = 202,023.72 × 79,326
  4. Step 4: Simplify right side
    146,394x = 16,025,733,612.72
  5. Step 5: Solve for x
    x = 16,025,733,612.72/146,394
  6. Step 6: Final answer
    x = 109,469.88

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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.