Home / 225,966.70-311,823.59-123,989.62

Finding the Fourth Proportional to 225,966.70, 311,823.59 and 123,989.62

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Solution

The fourth proportional to 225,966.70, 311,823.59 and 123,989.62 is: 171,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,966.70 : 311,823.59 = 123,989.62 : x
  2. Step 2: Convert to fraction form
    225,966.70/311,823.59 = 123,989.62/x
  3. Step 3: Cross multiply
    225,966.70x = 311,823.59 × 123,989.62
  4. Step 4: Simplify right side
    225,966.70x = 38,662,888,431.14
  5. Step 5: Solve for x
    x = 38,662,888,431.14/225,966.70
  6. Step 6: Final answer
    x = 171,099.94

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1.5x scale

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.