Home / 128,224.44-192,317.20-45,099

Finding the Fourth Proportional to 128,224.44, 192,317.20 and 45,099

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Solution

The fourth proportional to 128,224.44, 192,317.20 and 45,099 is: 67,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,224.44 : 192,317.20 = 45,099 : x
  2. Step 2: Convert to fraction form
    128,224.44/192,317.20 = 45,099/x
  3. Step 3: Cross multiply
    128,224.44x = 192,317.20 × 45,099
  4. Step 4: Simplify right side
    128,224.44x = 8,673,313,402.80
  5. Step 5: Solve for x
    x = 8,673,313,402.80/128,224.44
  6. Step 6: Final answer
    x = 67,641.66

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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.