Home / 89,212.80-132,799.92-87,883.68

Finding the Fourth Proportional to 89,212.80, 132,799.92 and 87,883.68

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Solution

The fourth proportional to 89,212.80, 132,799.92 and 87,883.68 is: 130,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,212.80 : 132,799.92 = 87,883.68 : x
  2. Step 2: Convert to fraction form
    89,212.80/132,799.92 = 87,883.68/x
  3. Step 3: Cross multiply
    89,212.80x = 132,799.92 × 87,883.68
  4. Step 4: Simplify right side
    89,212.80x = 11,670,945,673.31
  5. Step 5: Solve for x
    x = 11,670,945,673.31/89,212.80
  6. Step 6: Final answer
    x = 130,821.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.