Home / 215,092.76-322,704.78-109,985.56

Finding the Fourth Proportional to 215,092.76, 322,704.78 and 109,985.56

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Solution

The fourth proportional to 215,092.76, 322,704.78 and 109,985.56 is: 165,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,092.76 : 322,704.78 = 109,985.56 : x
  2. Step 2: Convert to fraction form
    215,092.76/322,704.78 = 109,985.56/x
  3. Step 3: Cross multiply
    215,092.76x = 322,704.78 × 109,985.56
  4. Step 4: Simplify right side
    215,092.76x = 35,492,865,942.98
  5. Step 5: Solve for x
    x = 35,492,865,942.98/215,092.76
  6. Step 6: Final answer
    x = 165,011.90

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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.