Home / 207,761.10-311,657.85-89,436.30

Finding the Fourth Proportional to 207,761.10, 311,657.85 and 89,436.30

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Solution

The fourth proportional to 207,761.10, 311,657.85 and 89,436.30 is: 134,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,761.10 : 311,657.85 = 89,436.30 : x
  2. Step 2: Convert to fraction form
    207,761.10/311,657.85 = 89,436.30/x
  3. Step 3: Cross multiply
    207,761.10x = 311,657.85 × 89,436.30
  4. Step 4: Simplify right side
    207,761.10x = 27,873,524,969.96
  5. Step 5: Solve for x
    x = 27,873,524,969.96/207,761.10
  6. Step 6: Final answer
    x = 134,161.42

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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.