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Finding the Fourth Proportional to 136,371.10, 204,606 and 69,842.56

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Solution

The fourth proportional to 136,371.10, 204,606 and 69,842.56 is: 104,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,371.10 : 204,606 = 69,842.56 : x
  2. Step 2: Convert to fraction form
    136,371.10/204,606 = 69,842.56/x
  3. Step 3: Cross multiply
    136,371.10x = 204,606 × 69,842.56
  4. Step 4: Simplify right side
    136,371.10x = 14,290,206,831.36
  5. Step 5: Solve for x
    x = 14,290,206,831.36/136,371.10
  6. Step 6: Final answer
    x = 104,789.11

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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.