Home / 138,250.84-207,434.58-82,198.03

Finding the Fourth Proportional to 138,250.84, 207,434.58 and 82,198.03

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Solution

The fourth proportional to 138,250.84, 207,434.58 and 82,198.03 is: 123,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,250.84 : 207,434.58 = 82,198.03 : x
  2. Step 2: Convert to fraction form
    138,250.84/207,434.58 = 82,198.03/x
  3. Step 3: Cross multiply
    138,250.84x = 207,434.58 × 82,198.03
  4. Step 4: Simplify right side
    138,250.84x = 17,050,713,829.88
  5. Step 5: Solve for x
    x = 17,050,713,829.88/138,250.84
  6. Step 6: Final answer
    x = 123,331.72

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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.