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Finding the Fourth Proportional to 88,389.87, 122,023.22 and 68,201.43

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Solution

The fourth proportional to 88,389.87, 122,023.22 and 68,201.43 is: 94,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,389.87 : 122,023.22 = 68,201.43 : x
  2. Step 2: Convert to fraction form
    88,389.87/122,023.22 = 68,201.43/x
  3. Step 3: Cross multiply
    88,389.87x = 122,023.22 × 68,201.43
  4. Step 4: Simplify right side
    88,389.87x = 8,322,157,756.20
  5. Step 5: Solve for x
    x = 8,322,157,756.20/88,389.87
  6. Step 6: Final answer
    x = 94,152.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.