Home / 139,652.64-192,687.05-82,294.31

Finding the Fourth Proportional to 139,652.64, 192,687.05 and 82,294.31

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Solution

The fourth proportional to 139,652.64, 192,687.05 and 82,294.31 is: 113,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,652.64 : 192,687.05 = 82,294.31 : x
  2. Step 2: Convert to fraction form
    139,652.64/192,687.05 = 82,294.31/x
  3. Step 3: Cross multiply
    139,652.64x = 192,687.05 × 82,294.31
  4. Step 4: Simplify right side
    139,652.64x = 15,857,047,825.69
  5. Step 5: Solve for x
    x = 15,857,047,825.69/139,652.64
  6. Step 6: Final answer
    x = 113,546.35

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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.