Home / 215,986.60-324,077.10-75,845.80

Finding the Fourth Proportional to 215,986.60, 324,077.10 and 75,845.80

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Solution

The fourth proportional to 215,986.60, 324,077.10 and 75,845.80 is: 113,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,986.60 : 324,077.10 = 75,845.80 : x
  2. Step 2: Convert to fraction form
    215,986.60/324,077.10 = 75,845.80/x
  3. Step 3: Cross multiply
    215,986.60x = 324,077.10 × 75,845.80
  4. Step 4: Simplify right side
    215,986.60x = 24,579,886,911.18
  5. Step 5: Solve for x
    x = 24,579,886,911.18/215,986.60
  6. Step 6: Final answer
    x = 113,802.83

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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.