Home / 281,885.16-422,786.74-82,151.92

Finding the Fourth Proportional to 281,885.16, 422,786.74 and 82,151.92

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Solution

The fourth proportional to 281,885.16, 422,786.74 and 82,151.92 is: 123,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,885.16 : 422,786.74 = 82,151.92 : x
  2. Step 2: Convert to fraction form
    281,885.16/422,786.74 = 82,151.92/x
  3. Step 3: Cross multiply
    281,885.16x = 422,786.74 × 82,151.92
  4. Step 4: Simplify right side
    281,885.16x = 34,732,742,918.68
  5. Step 5: Solve for x
    x = 34,732,742,918.68/281,885.16
  6. Step 6: Final answer
    x = 123,215.93

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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.