Home / 225,966.16-311,822.88-123,989.14

Finding the Fourth Proportional to 225,966.16, 311,822.88 and 123,989.14

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Solution

The fourth proportional to 225,966.16, 311,822.88 and 123,989.14 is: 171,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,966.16 : 311,822.88 = 123,989.14 : x
  2. Step 2: Convert to fraction form
    225,966.16/311,822.88 = 123,989.14/x
  3. Step 3: Cross multiply
    225,966.16x = 311,822.88 × 123,989.14
  4. Step 4: Simplify right side
    225,966.16x = 38,662,650,723.52
  5. Step 5: Solve for x
    x = 38,662,650,723.52/225,966.16
  6. Step 6: Final answer
    x = 171,099.30

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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.