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Finding the Fourth Proportional to 101,976.99, 140,229.14 and 88,524.72

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Solution

The fourth proportional to 101,976.99, 140,229.14 and 88,524.72 is: 121,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,976.99 : 140,229.14 = 88,524.72 : x
  2. Step 2: Convert to fraction form
    101,976.99/140,229.14 = 88,524.72/x
  3. Step 3: Cross multiply
    101,976.99x = 140,229.14 × 88,524.72
  4. Step 4: Simplify right side
    101,976.99x = 12,413,744,911.72
  5. Step 5: Solve for x
    x = 12,413,744,911.72/101,976.99
  6. Step 6: Final answer
    x = 121,730.84

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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.