Home / 121,605.20-182,310.60-51,426.80

Finding the Fourth Proportional to 121,605.20, 182,310.60 and 51,426.80

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Solution

The fourth proportional to 121,605.20, 182,310.60 and 51,426.80 is: 77,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,605.20 : 182,310.60 = 51,426.80 : x
  2. Step 2: Convert to fraction form
    121,605.20/182,310.60 = 51,426.80/x
  3. Step 3: Cross multiply
    121,605.20x = 182,310.60 × 51,426.80
  4. Step 4: Simplify right side
    121,605.20x = 9,375,650,764.08
  5. Step 5: Solve for x
    x = 9,375,650,764.08/121,605.20
  6. Step 6: Final answer
    x = 77,099.09

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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.