Home / 139,349.38-192,318.51-82,760.74

Finding the Fourth Proportional to 139,349.38, 192,318.51 and 82,760.74

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Solution

The fourth proportional to 139,349.38, 192,318.51 and 82,760.74 is: 114,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.38 : 192,318.51 = 82,760.74 : x
  2. Step 2: Convert to fraction form
    139,349.38/192,318.51 = 82,760.74/x
  3. Step 3: Cross multiply
    139,349.38x = 192,318.51 × 82,760.74
  4. Step 4: Simplify right side
    139,349.38x = 15,916,422,203.30
  5. Step 5: Solve for x
    x = 15,916,422,203.30/139,349.38
  6. Step 6: Final answer
    x = 114,219.54

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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.