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Finding the Fourth Proportional to 101,929.78, 140,652.82 and 59,512.92

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Solution

The fourth proportional to 101,929.78, 140,652.82 and 59,512.92 is: 82,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,929.78 : 140,652.82 = 59,512.92 : x
  2. Step 2: Convert to fraction form
    101,929.78/140,652.82 = 59,512.92/x
  3. Step 3: Cross multiply
    101,929.78x = 140,652.82 × 59,512.92
  4. Step 4: Simplify right side
    101,929.78x = 8,370,660,024.43
  5. Step 5: Solve for x
    x = 8,370,660,024.43/101,929.78
  6. Step 6: Final answer
    x = 82,121.83

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1.5x scale

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.