Home / 132,976.22-198,685.53-128,325.20

Finding the Fourth Proportional to 132,976.22, 198,685.53 and 128,325.20

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Solution

The fourth proportional to 132,976.22, 198,685.53 and 128,325.20 is: 191,736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,976.22 : 198,685.53 = 128,325.20 : x
  2. Step 2: Convert to fraction form
    132,976.22/198,685.53 = 128,325.20/x
  3. Step 3: Cross multiply
    132,976.22x = 198,685.53 × 128,325.20
  4. Step 4: Simplify right side
    132,976.22x = 25,496,359,732.73
  5. Step 5: Solve for x
    x = 25,496,359,732.73/132,976.22
  6. Step 6: Final answer
    x = 191,736.23

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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.