Home / 139,463.28-192,475.62-82,874.64

Finding the Fourth Proportional to 139,463.28, 192,475.62 and 82,874.64

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Solution

The fourth proportional to 139,463.28, 192,475.62 and 82,874.64 is: 114,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,463.28 : 192,475.62 = 82,874.64 : x
  2. Step 2: Convert to fraction form
    139,463.28/192,475.62 = 82,874.64/x
  3. Step 3: Cross multiply
    139,463.28x = 192,475.62 × 82,874.64
  4. Step 4: Simplify right side
    139,463.28x = 15,951,347,716.28
  5. Step 5: Solve for x
    x = 15,951,347,716.28/139,463.28
  6. Step 6: Final answer
    x = 114,376.69

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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.