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Finding the Fourth Proportional to 131,321.55, 195,733.11 and 123,847.47

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Solution

The fourth proportional to 131,321.55, 195,733.11 and 123,847.47 is: 184,593.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,321.55 : 195,733.11 = 123,847.47 : x
  2. Step 2: Convert to fraction form
    131,321.55/195,733.11 = 123,847.47/x
  3. Step 3: Cross multiply
    131,321.55x = 195,733.11 × 123,847.47
  4. Step 4: Simplify right side
    131,321.55x = 24,241,050,468.73
  5. Step 5: Solve for x
    x = 24,241,050,468.73/131,321.55
  6. Step 6: Final answer
    x = 184,593.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.