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Finding the Fourth Proportional to 125,186.55, 187,809 and 36,449.43

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Solution

The fourth proportional to 125,186.55, 187,809 and 36,449.43 is: 54,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,186.55 : 187,809 = 36,449.43 : x
  2. Step 2: Convert to fraction form
    125,186.55/187,809 = 36,449.43/x
  3. Step 3: Cross multiply
    125,186.55x = 187,809 × 36,449.43
  4. Step 4: Simplify right side
    125,186.55x = 6,845,530,998.87
  5. Step 5: Solve for x
    x = 6,845,530,998.87/125,186.55
  6. Step 6: Final answer
    x = 54,682.64

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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.