Home / 136,623.15-188,553.51-102,107.97

Finding the Fourth Proportional to 136,623.15, 188,553.51 and 102,107.97

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Solution

The fourth proportional to 136,623.15, 188,553.51 and 102,107.97 is: 140,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,623.15 : 188,553.51 = 102,107.97 : x
  2. Step 2: Convert to fraction form
    136,623.15/188,553.51 = 102,107.97/x
  3. Step 3: Cross multiply
    136,623.15x = 188,553.51 × 102,107.97
  4. Step 4: Simplify right side
    136,623.15x = 19,252,816,142.47
  5. Step 5: Solve for x
    x = 19,252,816,142.47/136,623.15
  6. Step 6: Final answer
    x = 140,919.14

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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.