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Finding the Fourth Proportional to 133,730.52, 200,615.10 and 71,367

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Solution

The fourth proportional to 133,730.52, 200,615.10 and 71,367 is: 107,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,730.52 : 200,615.10 = 71,367 : x
  2. Step 2: Convert to fraction form
    133,730.52/200,615.10 = 71,367/x
  3. Step 3: Cross multiply
    133,730.52x = 200,615.10 × 71,367
  4. Step 4: Simplify right side
    133,730.52x = 14,317,297,841.70
  5. Step 5: Solve for x
    x = 14,317,297,841.70/133,730.52
  6. Step 6: Final answer
    x = 107,060.81

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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.