Home / 193,229.80-289,966.30-82,420.20

Finding the Fourth Proportional to 193,229.80, 289,966.30 and 82,420.20

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Solution

The fourth proportional to 193,229.80, 289,966.30 and 82,420.20 is: 123,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,229.80 : 289,966.30 = 82,420.20 : x
  2. Step 2: Convert to fraction form
    193,229.80/289,966.30 = 82,420.20/x
  3. Step 3: Cross multiply
    193,229.80x = 289,966.30 × 82,420.20
  4. Step 4: Simplify right side
    193,229.80x = 23,899,080,439.26
  5. Step 5: Solve for x
    x = 23,899,080,439.26/193,229.80
  6. Step 6: Final answer
    x = 123,682.17

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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.