Home / 84,216.96-116,721.60-82,642.56

Finding the Fourth Proportional to 84,216.96, 116,721.60 and 82,642.56

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Solution

The fourth proportional to 84,216.96, 116,721.60 and 82,642.56 is: 114,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,216.96 : 116,721.60 = 82,642.56 : x
  2. Step 2: Convert to fraction form
    84,216.96/116,721.60 = 82,642.56/x
  3. Step 3: Cross multiply
    84,216.96x = 116,721.60 × 82,642.56
  4. Step 4: Simplify right side
    84,216.96x = 9,646,171,831.30
  5. Step 5: Solve for x
    x = 9,646,171,831.30/84,216.96
  6. Step 6: Final answer
    x = 114,539.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.