Home / 215,604.11-323,468.61-89,221.03

Finding the Fourth Proportional to 215,604.11, 323,468.61 and 89,221.03

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Solution

The fourth proportional to 215,604.11, 323,468.61 and 89,221.03 is: 133,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604.11 : 323,468.61 = 89,221.03 : x
  2. Step 2: Convert to fraction form
    215,604.11/323,468.61 = 89,221.03/x
  3. Step 3: Cross multiply
    215,604.11x = 323,468.61 × 89,221.03
  4. Step 4: Simplify right side
    215,604.11x = 28,860,201,413.62
  5. Step 5: Solve for x
    x = 28,860,201,413.62/215,604.11
  6. Step 6: Final answer
    x = 133,857.38

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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.