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Finding the Fourth Proportional to 136,476.80, 204,520.80 and 100,658.60

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Solution

The fourth proportional to 136,476.80, 204,520.80 and 100,658.60 is: 150,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,476.80 : 204,520.80 = 100,658.60 : x
  2. Step 2: Convert to fraction form
    136,476.80/204,520.80 = 100,658.60/x
  3. Step 3: Cross multiply
    136,476.80x = 204,520.80 × 100,658.60
  4. Step 4: Simplify right side
    136,476.80x = 20,586,777,398.88
  5. Step 5: Solve for x
    x = 20,586,777,398.88/136,476.80
  6. Step 6: Final answer
    x = 150,844.52

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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.