Home / 132,705.05-198,589.86-82,808.64

Finding the Fourth Proportional to 132,705.05, 198,589.86 and 82,808.64

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Solution

The fourth proportional to 132,705.05, 198,589.86 and 82,808.64 is: 123,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,705.05 : 198,589.86 = 82,808.64 : x
  2. Step 2: Convert to fraction form
    132,705.05/198,589.86 = 82,808.64/x
  3. Step 3: Cross multiply
    132,705.05x = 198,589.86 × 82,808.64
  4. Step 4: Simplify right side
    132,705.05x = 16,444,956,224.39
  5. Step 5: Solve for x
    x = 16,444,956,224.39/132,705.05
  6. Step 6: Final answer
    x = 123,921.11

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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.