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Finding the Fourth Proportional to 100,179.75, 150,138.39 and 55,827.39

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Solution

The fourth proportional to 100,179.75, 150,138.39 and 55,827.39 is: 83,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,179.75 : 150,138.39 = 55,827.39 : x
  2. Step 2: Convert to fraction form
    100,179.75/150,138.39 = 55,827.39/x
  3. Step 3: Cross multiply
    100,179.75x = 150,138.39 × 55,827.39
  4. Step 4: Simplify right side
    100,179.75x = 8,381,834,452.50
  5. Step 5: Solve for x
    x = 8,381,834,452.50/100,179.75
  6. Step 6: Final answer
    x = 83,667.95

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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.