Home / 106,736.03-147,309.80-103,231.02

Finding the Fourth Proportional to 106,736.03, 147,309.80 and 103,231.02

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Solution

The fourth proportional to 106,736.03, 147,309.80 and 103,231.02 is: 142,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,736.03 : 147,309.80 = 103,231.02 : x
  2. Step 2: Convert to fraction form
    106,736.03/147,309.80 = 103,231.02/x
  3. Step 3: Cross multiply
    106,736.03x = 147,309.80 × 103,231.02
  4. Step 4: Simplify right side
    106,736.03x = 15,206,940,910.00
  5. Step 5: Solve for x
    x = 15,206,940,910.00/106,736.03
  6. Step 6: Final answer
    x = 142,472.42

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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.