Home / 207,823.38-311,709.15-83,165.46

Finding the Fourth Proportional to 207,823.38, 311,709.15 and 83,165.46

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Solution

The fourth proportional to 207,823.38, 311,709.15 and 83,165.46 is: 124,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,823.38 : 311,709.15 = 83,165.46 : x
  2. Step 2: Convert to fraction form
    207,823.38/311,709.15 = 83,165.46/x
  3. Step 3: Cross multiply
    207,823.38x = 311,709.15 × 83,165.46
  4. Step 4: Simplify right side
    207,823.38x = 25,923,434,845.96
  5. Step 5: Solve for x
    x = 25,923,434,845.96/207,823.38
  6. Step 6: Final answer
    x = 124,737.82

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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.