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Finding the Fourth Proportional to 95,403.60, 131,721.12 and 85,299.84

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Solution

The fourth proportional to 95,403.60, 131,721.12 and 85,299.84 is: 117,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,403.60 : 131,721.12 = 85,299.84 : x
  2. Step 2: Convert to fraction form
    95,403.60/131,721.12 = 85,299.84/x
  3. Step 3: Cross multiply
    95,403.60x = 131,721.12 × 85,299.84
  4. Step 4: Simplify right side
    95,403.60x = 11,235,790,460.62
  5. Step 5: Solve for x
    x = 11,235,790,460.62/95,403.60
  6. Step 6: Final answer
    x = 117,771.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.