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Finding the Fourth Proportional to 146,397, 202,028.10 and 79,329

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Solution

The fourth proportional to 146,397, 202,028.10 and 79,329 is: 109,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,397 : 202,028.10 = 79,329 : x
  2. Step 2: Convert to fraction form
    146,397/202,028.10 = 79,329/x
  3. Step 3: Cross multiply
    146,397x = 202,028.10 × 79,329
  4. Step 4: Simplify right side
    146,397x = 16,026,687,144.90
  5. Step 5: Solve for x
    x = 16,026,687,144.90/146,397
  6. Step 6: Final answer
    x = 109,474.15

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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.