Home / 84,650.20-126,845.70-79,984.60

Finding the Fourth Proportional to 84,650.20, 126,845.70 and 79,984.60

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Solution

The fourth proportional to 84,650.20, 126,845.70 and 79,984.60 is: 119,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,650.20 : 126,845.70 = 79,984.60 : x
  2. Step 2: Convert to fraction form
    84,650.20/126,845.70 = 79,984.60/x
  3. Step 3: Cross multiply
    84,650.20x = 126,845.70 × 79,984.60
  4. Step 4: Simplify right side
    84,650.20x = 10,145,702,576.22
  5. Step 5: Solve for x
    x = 10,145,702,576.22/84,650.20
  6. Step 6: Final answer
    x = 119,854.44

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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.