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Finding the Fourth Proportional to 136,305, 204,388.83 and 79,397.23

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Solution

The fourth proportional to 136,305, 204,388.83 and 79,397.23 is: 119,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,305 : 204,388.83 = 79,397.23 : x
  2. Step 2: Convert to fraction form
    136,305/204,388.83 = 79,397.23/x
  3. Step 3: Cross multiply
    136,305x = 204,388.83 × 79,397.23
  4. Step 4: Simplify right side
    136,305x = 16,227,906,944.94
  5. Step 5: Solve for x
    x = 16,227,906,944.94/136,305
  6. Step 6: Final answer
    x = 119,055.84

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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.