Home / 120,731.70-181,119.15-50,618.10

Finding the Fourth Proportional to 120,731.70, 181,119.15 and 50,618.10

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Solution

The fourth proportional to 120,731.70, 181,119.15 and 50,618.10 is: 75,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,731.70 : 181,119.15 = 50,618.10 : x
  2. Step 2: Convert to fraction form
    120,731.70/181,119.15 = 50,618.10/x
  3. Step 3: Cross multiply
    120,731.70x = 181,119.15 × 50,618.10
  4. Step 4: Simplify right side
    120,731.70x = 9,167,907,246.62
  5. Step 5: Solve for x
    x = 9,167,907,246.62/120,731.70
  6. Step 6: Final answer
    x = 75,936.21

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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.