Home / 207,926.70-311,890.05-123,727.20

Finding the Fourth Proportional to 207,926.70, 311,890.05 and 123,727.20

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Solution

The fourth proportional to 207,926.70, 311,890.05 and 123,727.20 is: 185,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,926.70 : 311,890.05 = 123,727.20 : x
  2. Step 2: Convert to fraction form
    207,926.70/311,890.05 = 123,727.20/x
  3. Step 3: Cross multiply
    207,926.70x = 311,890.05 × 123,727.20
  4. Step 4: Simplify right side
    207,926.70x = 38,589,282,594.36
  5. Step 5: Solve for x
    x = 38,589,282,594.36/207,926.70
  6. Step 6: Final answer
    x = 185,590.80

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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.