Home / 225,811.42-311,620.19-123,837.60

Finding the Fourth Proportional to 225,811.42, 311,620.19 and 123,837.60

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Solution

The fourth proportional to 225,811.42, 311,620.19 and 123,837.60 is: 170,896.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,811.42 : 311,620.19 = 123,837.60 : x
  2. Step 2: Convert to fraction form
    225,811.42/311,620.19 = 123,837.60/x
  3. Step 3: Cross multiply
    225,811.42x = 311,620.19 × 123,837.60
  4. Step 4: Simplify right side
    225,811.42x = 38,590,296,441.14
  5. Step 5: Solve for x
    x = 38,590,296,441.14/225,811.42
  6. Step 6: Final answer
    x = 170,896.12

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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.