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Finding the Fourth Proportional to 133,911.37, 200,880.02 and 39,139.42

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Solution

The fourth proportional to 133,911.37, 200,880.02 and 39,139.42 is: 58,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,911.37 : 200,880.02 = 39,139.42 : x
  2. Step 2: Convert to fraction form
    133,911.37/200,880.02 = 39,139.42/x
  3. Step 3: Cross multiply
    133,911.37x = 200,880.02 × 39,139.42
  4. Step 4: Simplify right side
    133,911.37x = 7,862,327,472.39
  5. Step 5: Solve for x
    x = 7,862,327,472.39/133,911.37
  6. Step 6: Final answer
    x = 58,712.92

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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.