Home / 207,934.70-311,902.05-123,735.20

Finding the Fourth Proportional to 207,934.70, 311,902.05 and 123,735.20

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Solution

The fourth proportional to 207,934.70, 311,902.05 and 123,735.20 is: 185,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,934.70 : 311,902.05 = 123,735.20 : x
  2. Step 2: Convert to fraction form
    207,934.70/311,902.05 = 123,735.20/x
  3. Step 3: Cross multiply
    207,934.70x = 311,902.05 × 123,735.20
  4. Step 4: Simplify right side
    207,934.70x = 38,593,262,537.16
  5. Step 5: Solve for x
    x = 38,593,262,537.16/207,934.70
  6. Step 6: Final answer
    x = 185,602.80

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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.