Home / 115,814.20-173,778.90-45,695.80

Finding the Fourth Proportional to 115,814.20, 173,778.90 and 45,695.80

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Solution

The fourth proportional to 115,814.20, 173,778.90 and 45,695.80 is: 68,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,814.20 : 173,778.90 = 45,695.80 : x
  2. Step 2: Convert to fraction form
    115,814.20/173,778.90 = 45,695.80/x
  3. Step 3: Cross multiply
    115,814.20x = 173,778.90 × 45,695.80
  4. Step 4: Simplify right side
    115,814.20x = 7,940,965,858.62
  5. Step 5: Solve for x
    x = 7,940,965,858.62/115,814.20
  6. Step 6: Final answer
    x = 68,566.43

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1.5x scale

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.