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Finding the Fourth Proportional to 146,337, 201,945.12 and 79,269

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Solution

The fourth proportional to 146,337, 201,945.12 and 79,269 is: 109,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,337 : 201,945.12 = 79,269 : x
  2. Step 2: Convert to fraction form
    146,337/201,945.12 = 79,269/x
  3. Step 3: Cross multiply
    146,337x = 201,945.12 × 79,269
  4. Step 4: Simplify right side
    146,337x = 16,007,987,717.28
  5. Step 5: Solve for x
    x = 16,007,987,717.28/146,337
  6. Step 6: Final answer
    x = 109,391.25

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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.