Home / 114,819.60-172,229.40-68,125.20

Finding the Fourth Proportional to 114,819.60, 172,229.40 and 68,125.20

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Solution

The fourth proportional to 114,819.60, 172,229.40 and 68,125.20 is: 102,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,819.60 : 172,229.40 = 68,125.20 : x
  2. Step 2: Convert to fraction form
    114,819.60/172,229.40 = 68,125.20/x
  3. Step 3: Cross multiply
    114,819.60x = 172,229.40 × 68,125.20
  4. Step 4: Simplify right side
    114,819.60x = 11,733,162,320.88
  5. Step 5: Solve for x
    x = 11,733,162,320.88/114,819.60
  6. Step 6: Final answer
    x = 102,187.80

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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.