Home / 149,467.82-223,712.09-81,896.81

Finding the Fourth Proportional to 149,467.82, 223,712.09 and 81,896.81

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Solution

The fourth proportional to 149,467.82, 223,712.09 and 81,896.81 is: 122,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,467.82 : 223,712.09 = 81,896.81 : x
  2. Step 2: Convert to fraction form
    149,467.82/223,712.09 = 81,896.81/x
  3. Step 3: Cross multiply
    149,467.82x = 223,712.09 × 81,896.81
  4. Step 4: Simplify right side
    149,467.82x = 18,321,306,679.23
  5. Step 5: Solve for x
    x = 18,321,306,679.23/149,467.82
  6. Step 6: Final answer
    x = 122,576.93

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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.