Home / 120,719.94-181,080.94-45,819.98

Finding the Fourth Proportional to 120,719.94, 181,080.94 and 45,819.98

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Solution

The fourth proportional to 120,719.94, 181,080.94 and 45,819.98 is: 68,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,719.94 : 181,080.94 = 45,819.98 : x
  2. Step 2: Convert to fraction form
    120,719.94/181,080.94 = 45,819.98/x
  3. Step 3: Cross multiply
    120,719.94x = 181,080.94 × 45,819.98
  4. Step 4: Simplify right side
    120,719.94x = 8,297,123,914.68
  5. Step 5: Solve for x
    x = 8,297,123,914.68/120,719.94
  6. Step 6: Final answer
    x = 68,730.35

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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.