Home / 136,163.62-204,436.79-69,651.48

Finding the Fourth Proportional to 136,163.62, 204,436.79 and 69,651.48

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Solution

The fourth proportional to 136,163.62, 204,436.79 and 69,651.48 is: 104,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,163.62 : 204,436.79 = 69,651.48 : x
  2. Step 2: Convert to fraction form
    136,163.62/204,436.79 = 69,651.48/x
  3. Step 3: Cross multiply
    136,163.62x = 204,436.79 × 69,651.48
  4. Step 4: Simplify right side
    136,163.62x = 14,239,324,989.95
  5. Step 5: Solve for x
    x = 14,239,324,989.95/136,163.62
  6. Step 6: Final answer
    x = 104,575.11

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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.