Home / 142,885.57-197,183.01-82,458.76

Finding the Fourth Proportional to 142,885.57, 197,183.01 and 82,458.76

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Solution

The fourth proportional to 142,885.57, 197,183.01 and 82,458.76 is: 113,793.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,885.57 : 197,183.01 = 82,458.76 : x
  2. Step 2: Convert to fraction form
    142,885.57/197,183.01 = 82,458.76/x
  3. Step 3: Cross multiply
    142,885.57x = 197,183.01 × 82,458.76
  4. Step 4: Simplify right side
    142,885.57x = 16,259,466,497.67
  5. Step 5: Solve for x
    x = 16,259,466,497.67/142,885.57
  6. Step 6: Final answer
    x = 113,793.62

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Double scale
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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.