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Finding the Fourth Proportional to 125,370.55, 188,105.05 and 55,200.66

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Solution

The fourth proportional to 125,370.55, 188,105.05 and 55,200.66 is: 82,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,370.55 : 188,105.05 = 55,200.66 : x
  2. Step 2: Convert to fraction form
    125,370.55/188,105.05 = 55,200.66/x
  3. Step 3: Cross multiply
    125,370.55x = 188,105.05 × 55,200.66
  4. Step 4: Simplify right side
    125,370.55x = 10,383,522,272.94
  5. Step 5: Solve for x
    x = 10,383,522,272.94/125,370.55
  6. Step 6: Final answer
    x = 82,822.66

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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.