Home / 140,105.64-193,395.65-82,745.19

Finding the Fourth Proportional to 140,105.64, 193,395.65 and 82,745.19

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Solution

The fourth proportional to 140,105.64, 193,395.65 and 82,745.19 is: 114,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,105.64 : 193,395.65 = 82,745.19 : x
  2. Step 2: Convert to fraction form
    140,105.64/193,395.65 = 82,745.19/x
  3. Step 3: Cross multiply
    140,105.64x = 193,395.65 × 82,745.19
  4. Step 4: Simplify right side
    140,105.64x = 16,002,559,804.42
  5. Step 5: Solve for x
    x = 16,002,559,804.42/140,105.64
  6. Step 6: Final answer
    x = 114,217.81

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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.