Home / 82,664.24-113,333.65-81,169.56

Finding the Fourth Proportional to 82,664.24, 113,333.65 and 81,169.56

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Solution

The fourth proportional to 82,664.24, 113,333.65 and 81,169.56 is: 111,284.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,664.24 : 113,333.65 = 81,169.56 : x
  2. Step 2: Convert to fraction form
    82,664.24/113,333.65 = 81,169.56/x
  3. Step 3: Cross multiply
    82,664.24x = 113,333.65 × 81,169.56
  4. Step 4: Simplify right side
    82,664.24x = 9,199,242,097.85
  5. Step 5: Solve for x
    x = 9,199,242,097.85/82,664.24
  6. Step 6: Final answer
    x = 111,284.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.