Home / 132,561.28-198,841.92-109,138.51

Finding the Fourth Proportional to 132,561.28, 198,841.92 and 109,138.51

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Solution

The fourth proportional to 132,561.28, 198,841.92 and 109,138.51 is: 163,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,561.28 : 198,841.92 = 109,138.51 : x
  2. Step 2: Convert to fraction form
    132,561.28/198,841.92 = 109,138.51/x
  3. Step 3: Cross multiply
    132,561.28x = 198,841.92 × 109,138.51
  4. Step 4: Simplify right side
    132,561.28x = 21,701,310,874.34
  5. Step 5: Solve for x
    x = 21,701,310,874.34/132,561.28
  6. Step 6: Final answer
    x = 163,707.77

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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.