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Finding the Fourth Proportional to 139,360.59, 192,318.09 and 82,002.10

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Solution

The fourth proportional to 139,360.59, 192,318.09 and 82,002.10 is: 113,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,360.59 : 192,318.09 = 82,002.10 : x
  2. Step 2: Convert to fraction form
    139,360.59/192,318.09 = 82,002.10/x
  3. Step 3: Cross multiply
    139,360.59x = 192,318.09 × 82,002.10
  4. Step 4: Simplify right side
    139,360.59x = 15,770,487,247.99
  5. Step 5: Solve for x
    x = 15,770,487,247.99/139,360.59
  6. Step 6: Final answer
    x = 113,163.18

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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.