Home / 207,973.41-311,981.98-67,742.97

Finding the Fourth Proportional to 207,973.41, 311,981.98 and 67,742.97

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Solution

The fourth proportional to 207,973.41, 311,981.98 and 67,742.97 is: 101,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,973.41 : 311,981.98 = 67,742.97 : x
  2. Step 2: Convert to fraction form
    207,973.41/311,981.98 = 67,742.97/x
  3. Step 3: Cross multiply
    207,973.41x = 311,981.98 × 67,742.97
  4. Step 4: Simplify right side
    207,973.41x = 21,134,584,182.41
  5. Step 5: Solve for x
    x = 21,134,584,182.41/207,973.41
  6. Step 6: Final answer
    x = 101,621.57

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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.