Home / 220,145.70-329,999.85-107,733.90

Finding the Fourth Proportional to 220,145.70, 329,999.85 and 107,733.90

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Solution

The fourth proportional to 220,145.70, 329,999.85 and 107,733.90 is: 161,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,145.70 : 329,999.85 = 107,733.90 : x
  2. Step 2: Convert to fraction form
    220,145.70/329,999.85 = 107,733.90/x
  3. Step 3: Cross multiply
    220,145.70x = 329,999.85 × 107,733.90
  4. Step 4: Simplify right side
    220,145.70x = 35,552,170,839.92
  5. Step 5: Solve for x
    x = 35,552,170,839.92/220,145.70
  6. Step 6: Final answer
    x = 161,493.82

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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.