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Finding the Fourth Proportional to 104,304.72, 143,902.80 and 68,514

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Solution

The fourth proportional to 104,304.72, 143,902.80 and 68,514 is: 94,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,304.72 : 143,902.80 = 68,514 : x
  2. Step 2: Convert to fraction form
    104,304.72/143,902.80 = 68,514/x
  3. Step 3: Cross multiply
    104,304.72x = 143,902.80 × 68,514
  4. Step 4: Simplify right side
    104,304.72x = 9,859,356,439.20
  5. Step 5: Solve for x
    x = 9,859,356,439.20/104,304.72
  6. Step 6: Final answer
    x = 94,524.55

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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.