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Finding the Fourth Proportional to 133,292.48, 199,880 and 50,128

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Solution

The fourth proportional to 133,292.48, 199,880 and 50,128 is: 75,169.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,292.48 : 199,880 = 50,128 : x
  2. Step 2: Convert to fraction form
    133,292.48/199,880 = 50,128/x
  3. Step 3: Cross multiply
    133,292.48x = 199,880 × 50,128
  4. Step 4: Simplify right side
    133,292.48x = 10,019,584,640
  5. Step 5: Solve for x
    x = 10,019,584,640/133,292.48
  6. Step 6: Final answer
    x = 75,169.92

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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.