Home / 132,091.21-198,134.38-53,203.49

Finding the Fourth Proportional to 132,091.21, 198,134.38 and 53,203.49

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Solution

The fourth proportional to 132,091.21, 198,134.38 and 53,203.49 is: 79,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,091.21 : 198,134.38 = 53,203.49 : x
  2. Step 2: Convert to fraction form
    132,091.21/198,134.38 = 53,203.49/x
  3. Step 3: Cross multiply
    132,091.21x = 198,134.38 × 53,203.49
  4. Step 4: Simplify right side
    132,091.21x = 10,541,440,504.99
  5. Step 5: Solve for x
    x = 10,541,440,504.99/132,091.21
  6. Step 6: Final answer
    x = 79,804.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.