Home / 220,941.54-331,313.90-80,601.75

Finding the Fourth Proportional to 220,941.54, 331,313.90 and 80,601.75

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Solution

The fourth proportional to 220,941.54, 331,313.90 and 80,601.75 is: 120,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,941.54 : 331,313.90 = 80,601.75 : x
  2. Step 2: Convert to fraction form
    220,941.54/331,313.90 = 80,601.75/x
  3. Step 3: Cross multiply
    220,941.54x = 331,313.90 × 80,601.75
  4. Step 4: Simplify right side
    220,941.54x = 26,704,479,736.32
  5. Step 5: Solve for x
    x = 26,704,479,736.32/220,941.54
  6. Step 6: Final answer
    x = 120,866.72

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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.