Home / 281,869.07-422,758.60-82,142.74

Finding the Fourth Proportional to 281,869.07, 422,758.60 and 82,142.74

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Solution

The fourth proportional to 281,869.07, 422,758.60 and 82,142.74 is: 123,200.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,869.07 : 422,758.60 = 82,142.74 : x
  2. Step 2: Convert to fraction form
    281,869.07/422,758.60 = 82,142.74/x
  3. Step 3: Cross multiply
    281,869.07x = 422,758.60 × 82,142.74
  4. Step 4: Simplify right side
    281,869.07x = 34,726,547,238.06
  5. Step 5: Solve for x
    x = 34,726,547,238.06/281,869.07
  6. Step 6: Final answer
    x = 123,200.99

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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.