Home / 131,921.73-197,863.47-43,178.76

Finding the Fourth Proportional to 131,921.73, 197,863.47 and 43,178.76

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Solution

The fourth proportional to 131,921.73, 197,863.47 and 43,178.76 is: 64,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,921.73 : 197,863.47 = 43,178.76 : x
  2. Step 2: Convert to fraction form
    131,921.73/197,863.47 = 43,178.76/x
  3. Step 3: Cross multiply
    131,921.73x = 197,863.47 × 43,178.76
  4. Step 4: Simplify right side
    131,921.73x = 8,543,499,283.90
  5. Step 5: Solve for x
    x = 8,543,499,283.90/131,921.73
  6. Step 6: Final answer
    x = 64,761.88

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1.5x scale

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.