Home / 215,125.21-322,675.48-82,018.90

Finding the Fourth Proportional to 215,125.21, 322,675.48 and 82,018.90

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Solution

The fourth proportional to 215,125.21, 322,675.48 and 82,018.90 is: 123,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,125.21 : 322,675.48 = 82,018.90 : x
  2. Step 2: Convert to fraction form
    215,125.21/322,675.48 = 82,018.90/x
  3. Step 3: Cross multiply
    215,125.21x = 322,675.48 × 82,018.90
  4. Step 4: Simplify right side
    215,125.21x = 26,465,487,926.57
  5. Step 5: Solve for x
    x = 26,465,487,926.57/215,125.21
  6. Step 6: Final answer
    x = 123,023.65

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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.