Home / 142,922.46-197,218.77-82,512.60

Finding the Fourth Proportional to 142,922.46, 197,218.77 and 82,512.60

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Solution

The fourth proportional to 142,922.46, 197,218.77 and 82,512.60 is: 113,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,922.46 : 197,218.77 = 82,512.60 : x
  2. Step 2: Convert to fraction form
    142,922.46/197,218.77 = 82,512.60/x
  3. Step 3: Cross multiply
    142,922.46x = 197,218.77 × 82,512.60
  4. Step 4: Simplify right side
    142,922.46x = 16,273,033,481.50
  5. Step 5: Solve for x
    x = 16,273,033,481.50/142,922.46
  6. Step 6: Final answer
    x = 113,859.18

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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.