Home / 132,571.26-198,466.16-87,509.48

Finding the Fourth Proportional to 132,571.26, 198,466.16 and 87,509.48

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Solution

The fourth proportional to 132,571.26, 198,466.16 and 87,509.48 is: 131,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,571.26 : 198,466.16 = 87,509.48 : x
  2. Step 2: Convert to fraction form
    132,571.26/198,466.16 = 87,509.48/x
  3. Step 3: Cross multiply
    132,571.26x = 198,466.16 × 87,509.48
  4. Step 4: Simplify right side
    132,571.26x = 17,367,669,029.32
  5. Step 5: Solve for x
    x = 17,367,669,029.32/132,571.26
  6. Step 6: Final answer
    x = 131,006.29

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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.