Home / 109,309.13-163,982.37-50,149.86

Finding the Fourth Proportional to 109,309.13, 163,982.37 and 50,149.86

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Solution

The fourth proportional to 109,309.13, 163,982.37 and 50,149.86 is: 75,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,309.13 : 163,982.37 = 50,149.86 : x
  2. Step 2: Convert to fraction form
    109,309.13/163,982.37 = 50,149.86/x
  3. Step 3: Cross multiply
    109,309.13x = 163,982.37 × 50,149.86
  4. Step 4: Simplify right side
    109,309.13x = 8,223,692,897.97
  5. Step 5: Solve for x
    x = 8,223,692,897.97/109,309.13
  6. Step 6: Final answer
    x = 75,233.36

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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.