Home / 82,990.26-123,956.22-75,080.58

Finding the Fourth Proportional to 82,990.26, 123,956.22 and 75,080.58

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Solution

The fourth proportional to 82,990.26, 123,956.22 and 75,080.58 is: 112,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,990.26 : 123,956.22 = 75,080.58 : x
  2. Step 2: Convert to fraction form
    82,990.26/123,956.22 = 75,080.58/x
  3. Step 3: Cross multiply
    82,990.26x = 123,956.22 × 75,080.58
  4. Step 4: Simplify right side
    82,990.26x = 9,306,704,892.21
  5. Step 5: Solve for x
    x = 9,306,704,892.21/82,990.26
  6. Step 6: Final answer
    x = 112,142.13

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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.