Home / 120,781.20-181,084.24-60,846.56

Finding the Fourth Proportional to 120,781.20, 181,084.24 and 60,846.56

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Solution

The fourth proportional to 120,781.20, 181,084.24 and 60,846.56 is: 91,225.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,781.20 : 181,084.24 = 60,846.56 : x
  2. Step 2: Convert to fraction form
    120,781.20/181,084.24 = 60,846.56/x
  3. Step 3: Cross multiply
    120,781.20x = 181,084.24 × 60,846.56
  4. Step 4: Simplify right side
    120,781.20x = 11,018,353,074.21
  5. Step 5: Solve for x
    x = 11,018,353,074.21/120,781.20
  6. Step 6: Final answer
    x = 91,225.73

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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.