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Finding the Fourth Proportional to 114,819.60, 172,234.20 and 61,489.20

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Solution

The fourth proportional to 114,819.60, 172,234.20 and 61,489.20 is: 92,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,819.60 : 172,234.20 = 61,489.20 : x
  2. Step 2: Convert to fraction form
    114,819.60/172,234.20 = 61,489.20/x
  3. Step 3: Cross multiply
    114,819.60x = 172,234.20 × 61,489.20
  4. Step 4: Simplify right side
    114,819.60x = 10,590,543,170.64
  5. Step 5: Solve for x
    x = 10,590,543,170.64/114,819.60
  6. Step 6: Final answer
    x = 92,236.37

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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.