Home / 215,126.21-322,676.98-82,019.90

Finding the Fourth Proportional to 215,126.21, 322,676.98 and 82,019.90

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Solution

The fourth proportional to 215,126.21, 322,676.98 and 82,019.90 is: 123,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,126.21 : 322,676.98 = 82,019.90 : x
  2. Step 2: Convert to fraction form
    215,126.21/322,676.98 = 82,019.90/x
  3. Step 3: Cross multiply
    215,126.21x = 322,676.98 × 82,019.90
  4. Step 4: Simplify right side
    215,126.21x = 26,465,933,631.90
  5. Step 5: Solve for x
    x = 26,465,933,631.90/215,126.21
  6. Step 6: Final answer
    x = 123,025.15

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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.