Home / 149,498.82-206,305.74-81,516.33

Finding the Fourth Proportional to 149,498.82, 206,305.74 and 81,516.33

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Solution

The fourth proportional to 149,498.82, 206,305.74 and 81,516.33 is: 112,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,498.82 : 206,305.74 = 81,516.33 : x
  2. Step 2: Convert to fraction form
    149,498.82/206,305.74 = 81,516.33/x
  3. Step 3: Cross multiply
    149,498.82x = 206,305.74 × 81,516.33
  4. Step 4: Simplify right side
    149,498.82x = 16,817,286,782.73
  5. Step 5: Solve for x
    x = 16,817,286,782.73/149,498.82
  6. Step 6: Final answer
    x = 112,491.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.