Home / 207,817.15-311,613.94-107,729.23

Finding the Fourth Proportional to 207,817.15, 311,613.94 and 107,729.23

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Solution

The fourth proportional to 207,817.15, 311,613.94 and 107,729.23 is: 161,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,817.15 : 311,613.94 = 107,729.23 : x
  2. Step 2: Convert to fraction form
    207,817.15/311,613.94 = 107,729.23/x
  3. Step 3: Cross multiply
    207,817.15x = 311,613.94 × 107,729.23
  4. Step 4: Simplify right side
    207,817.15x = 33,569,929,813.47
  5. Step 5: Solve for x
    x = 33,569,929,813.47/207,817.15
  6. Step 6: Final answer
    x = 161,535.90

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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.