Home / 120,865.42-181,270.79-45,958.85

Finding the Fourth Proportional to 120,865.42, 181,270.79 and 45,958.85

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Solution

The fourth proportional to 120,865.42, 181,270.79 and 45,958.85 is: 68,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,865.42 : 181,270.79 = 45,958.85 : x
  2. Step 2: Convert to fraction form
    120,865.42/181,270.79 = 45,958.85/x
  3. Step 3: Cross multiply
    120,865.42x = 181,270.79 × 45,958.85
  4. Step 4: Simplify right side
    120,865.42x = 8,330,997,046.99
  5. Step 5: Solve for x
    x = 8,330,997,046.99/120,865.42
  6. Step 6: Final answer
    x = 68,927.88

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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.