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Finding the Fourth Proportional to 148,578, 222,841.10 and 68,609.16

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Solution

The fourth proportional to 148,578, 222,841.10 and 68,609.16 is: 102,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,578 : 222,841.10 = 68,609.16 : x
  2. Step 2: Convert to fraction form
    148,578/222,841.10 = 68,609.16/x
  3. Step 3: Cross multiply
    148,578x = 222,841.10 × 68,609.16
  4. Step 4: Simplify right side
    148,578x = 15,288,940,684.48
  5. Step 5: Solve for x
    x = 15,288,940,684.48/148,578
  6. Step 6: Final answer
    x = 102,901.78

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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.