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Finding the Fourth Proportional to 116,171.60, 173,868.60 and 81,179.60

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Solution

The fourth proportional to 116,171.60, 173,868.60 and 81,179.60 is: 121,497.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,171.60 : 173,868.60 = 81,179.60 : x
  2. Step 2: Convert to fraction form
    116,171.60/173,868.60 = 81,179.60/x
  3. Step 3: Cross multiply
    116,171.60x = 173,868.60 × 81,179.60
  4. Step 4: Simplify right side
    116,171.60x = 14,114,583,400.56
  5. Step 5: Solve for x
    x = 14,114,583,400.56/116,171.60
  6. Step 6: Final answer
    x = 121,497.71

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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.