Home / 268,092.20-402,138.04-68,412.58

Finding the Fourth Proportional to 268,092.20, 402,138.04 and 68,412.58

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Solution

The fourth proportional to 268,092.20, 402,138.04 and 68,412.58 is: 102,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,092.20 : 402,138.04 = 68,412.58 : x
  2. Step 2: Convert to fraction form
    268,092.20/402,138.04 = 68,412.58/x
  3. Step 3: Cross multiply
    268,092.20x = 402,138.04 × 68,412.58
  4. Step 4: Simplify right side
    268,092.20x = 27,511,302,981.10
  5. Step 5: Solve for x
    x = 27,511,302,981.10/268,092.20
  6. Step 6: Final answer
    x = 102,618.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.