Home / 207,539.20-311,109.54-132,447.34

Finding the Fourth Proportional to 207,539.20, 311,109.54 and 132,447.34

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Solution

The fourth proportional to 207,539.20, 311,109.54 and 132,447.34 is: 198,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,539.20 : 311,109.54 = 132,447.34 : x
  2. Step 2: Convert to fraction form
    207,539.20/311,109.54 = 132,447.34/x
  3. Step 3: Cross multiply
    207,539.20x = 311,109.54 × 132,447.34
  4. Step 4: Simplify right side
    207,539.20x = 41,205,631,021.62
  5. Step 5: Solve for x
    x = 41,205,631,021.62/207,539.20
  6. Step 6: Final answer
    x = 198,543.85

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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.