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Finding the Fourth Proportional to 136,124.38, 203,905.68 and 79,793.43

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Solution

The fourth proportional to 136,124.38, 203,905.68 and 79,793.43 is: 119,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,124.38 : 203,905.68 = 79,793.43 : x
  2. Step 2: Convert to fraction form
    136,124.38/203,905.68 = 79,793.43/x
  3. Step 3: Cross multiply
    136,124.38x = 203,905.68 × 79,793.43
  4. Step 4: Simplify right side
    136,124.38x = 16,270,333,603.68
  5. Step 5: Solve for x
    x = 16,270,333,603.68/136,124.38
  6. Step 6: Final answer
    x = 119,525.49

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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.