Home / 132,180.62-198,263.93-81,589.23

Finding the Fourth Proportional to 132,180.62, 198,263.93 and 81,589.23

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Solution

The fourth proportional to 132,180.62, 198,263.93 and 81,589.23 is: 122,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,180.62 : 198,263.93 = 81,589.23 : x
  2. Step 2: Convert to fraction form
    132,180.62/198,263.93 = 81,589.23/x
  3. Step 3: Cross multiply
    132,180.62x = 198,263.93 × 81,589.23
  4. Step 4: Simplify right side
    132,180.62x = 16,176,200,977.53
  5. Step 5: Solve for x
    x = 16,176,200,977.53/132,180.62
  6. Step 6: Final answer
    x = 122,379.53

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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.