Home / 405,622.20-608,519.70-125,167.80

Finding the Fourth Proportional to 405,622.20, 608,519.70 and 125,167.80

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Solution

The fourth proportional to 405,622.20, 608,519.70 and 125,167.80 is: 187,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,622.20 : 608,519.70 = 125,167.80 : x
  2. Step 2: Convert to fraction form
    405,622.20/608,519.70 = 125,167.80/x
  3. Step 3: Cross multiply
    405,622.20x = 608,519.70 × 125,167.80
  4. Step 4: Simplify right side
    405,622.20x = 76,167,072,105.66
  5. Step 5: Solve for x
    x = 76,167,072,105.66/405,622.20
  6. Step 6: Final answer
    x = 187,778.36

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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.