Home / 207,836.60-311,846.70-101,161.40

Finding the Fourth Proportional to 207,836.60, 311,846.70 and 101,161.40

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Solution

The fourth proportional to 207,836.60, 311,846.70 and 101,161.40 is: 151,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,836.60 : 311,846.70 = 101,161.40 : x
  2. Step 2: Convert to fraction form
    207,836.60/311,846.70 = 101,161.40/x
  3. Step 3: Cross multiply
    207,836.60x = 311,846.70 × 101,161.40
  4. Step 4: Simplify right side
    207,836.60x = 31,546,848,757.38
  5. Step 5: Solve for x
    x = 31,546,848,757.38/207,836.60
  6. Step 6: Final answer
    x = 151,786.78

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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.