Home / 207,972.41-311,980.48-67,741.97

Finding the Fourth Proportional to 207,972.41, 311,980.48 and 67,741.97

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Solution

The fourth proportional to 207,972.41, 311,980.48 and 67,741.97 is: 101,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.41 : 311,980.48 = 67,741.97 : x
  2. Step 2: Convert to fraction form
    207,972.41/311,980.48 = 67,741.97/x
  3. Step 3: Cross multiply
    207,972.41x = 311,980.48 × 67,741.97
  4. Step 4: Simplify right side
    207,972.41x = 21,134,170,587.49
  5. Step 5: Solve for x
    x = 21,134,170,587.49/207,972.41
  6. Step 6: Final answer
    x = 101,620.07

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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.