Home / 207,817.11-311,162.60-107,767.50

Finding the Fourth Proportional to 207,817.11, 311,162.60 and 107,767.50

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Solution

The fourth proportional to 207,817.11, 311,162.60 and 107,767.50 is: 161,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,817.11 : 311,162.60 = 107,767.50 : x
  2. Step 2: Convert to fraction form
    207,817.11/311,162.60 = 107,767.50/x
  3. Step 3: Cross multiply
    207,817.11x = 311,162.60 × 107,767.50
  4. Step 4: Simplify right side
    207,817.11x = 33,533,215,759.23
  5. Step 5: Solve for x
    x = 33,533,215,759.23/207,817.11
  6. Step 6: Final answer
    x = 161,359.26

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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.