Home / 225,849.91-311,674.40-123,876.10

Finding the Fourth Proportional to 225,849.91, 311,674.40 and 123,876.10

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Solution

The fourth proportional to 225,849.91, 311,674.40 and 123,876.10 is: 170,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,849.91 : 311,674.40 = 123,876.10 : x
  2. Step 2: Convert to fraction form
    225,849.91/311,674.40 = 123,876.10/x
  3. Step 3: Cross multiply
    225,849.91x = 311,674.40 × 123,876.10
  4. Step 4: Simplify right side
    225,849.91x = 38,609,007,893.16
  5. Step 5: Solve for x
    x = 38,609,007,893.16/225,849.91
  6. Step 6: Final answer
    x = 170,949.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.