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Finding the Fourth Proportional to 101,321.20, 151,981.80 and 93,026.80

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Solution

The fourth proportional to 101,321.20, 151,981.80 and 93,026.80 is: 139,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,321.20 : 151,981.80 = 93,026.80 : x
  2. Step 2: Convert to fraction form
    101,321.20/151,981.80 = 93,026.80/x
  3. Step 3: Cross multiply
    101,321.20x = 151,981.80 × 93,026.80
  4. Step 4: Simplify right side
    101,321.20x = 14,138,380,512.24
  5. Step 5: Solve for x
    x = 14,138,380,512.24/101,321.20
  6. Step 6: Final answer
    x = 139,540.20

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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.