Home / 204,861.75-307,381.28-109,981.23

Finding the Fourth Proportional to 204,861.75, 307,381.28 and 109,981.23

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Solution

The fourth proportional to 204,861.75, 307,381.28 and 109,981.23 is: 165,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,861.75 : 307,381.28 = 109,981.23 : x
  2. Step 2: Convert to fraction form
    204,861.75/307,381.28 = 109,981.23/x
  3. Step 3: Cross multiply
    204,861.75x = 307,381.28 × 109,981.23
  4. Step 4: Simplify right side
    204,861.75x = 33,806,170,703.47
  5. Step 5: Solve for x
    x = 33,806,170,703.47/204,861.75
  6. Step 6: Final answer
    x = 165,019.44

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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.