Home / 120,719.44-181,080.18-45,819.47

Finding the Fourth Proportional to 120,719.44, 181,080.18 and 45,819.47

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Solution

The fourth proportional to 120,719.44, 181,080.18 and 45,819.47 is: 68,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,719.44 : 181,080.18 = 45,819.47 : x
  2. Step 2: Convert to fraction form
    120,719.44/181,080.18 = 45,819.47/x
  3. Step 3: Cross multiply
    120,719.44x = 181,080.18 × 45,819.47
  4. Step 4: Simplify right side
    120,719.44x = 8,296,998,456.67
  5. Step 5: Solve for x
    x = 8,296,998,456.67/120,719.44
  6. Step 6: Final answer
    x = 68,729.60

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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.