Home / 120,668.45-181,002.68-76,150.85

Finding the Fourth Proportional to 120,668.45, 181,002.68 and 76,150.85

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Solution

The fourth proportional to 120,668.45, 181,002.68 and 76,150.85 is: 114,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,668.45 : 181,002.68 = 76,150.85 : x
  2. Step 2: Convert to fraction form
    120,668.45/181,002.68 = 76,150.85/x
  3. Step 3: Cross multiply
    120,668.45x = 181,002.68 × 76,150.85
  4. Step 4: Simplify right side
    120,668.45x = 13,783,507,553.52
  5. Step 5: Solve for x
    x = 13,783,507,553.52/120,668.45
  6. Step 6: Final answer
    x = 114,226.28

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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.