Home / 207,982.58-311,973.89-67,741.20

Finding the Fourth Proportional to 207,982.58, 311,973.89 and 67,741.20

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Solution

The fourth proportional to 207,982.58, 311,973.89 and 67,741.20 is: 101,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,982.58 : 311,973.89 = 67,741.20 : x
  2. Step 2: Convert to fraction form
    207,982.58/311,973.89 = 67,741.20/x
  3. Step 3: Cross multiply
    207,982.58x = 311,973.89 × 67,741.20
  4. Step 4: Simplify right side
    207,982.58x = 21,133,485,338.56
  5. Step 5: Solve for x
    x = 21,133,485,338.56/207,982.58
  6. Step 6: Final answer
    x = 101,611.81

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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.