Home / 149,733.28-206,632.05-82,665.28

Finding the Fourth Proportional to 149,733.28, 206,632.05 and 82,665.28

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Solution

The fourth proportional to 149,733.28, 206,632.05 and 82,665.28 is: 114,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,733.28 : 206,632.05 = 82,665.28 : x
  2. Step 2: Convert to fraction form
    149,733.28/206,632.05 = 82,665.28/x
  3. Step 3: Cross multiply
    149,733.28x = 206,632.05 × 82,665.28
  4. Step 4: Simplify right side
    149,733.28x = 17,081,296,270.22
  5. Step 5: Solve for x
    x = 17,081,296,270.22/149,733.28
  6. Step 6: Final answer
    x = 114,078.15

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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.