Home / 186,910.26-258,028.68-115,329.72

Finding the Fourth Proportional to 186,910.26, 258,028.68 and 115,329.72

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Solution

The fourth proportional to 186,910.26, 258,028.68 and 115,329.72 is: 159,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,910.26 : 258,028.68 = 115,329.72 : x
  2. Step 2: Convert to fraction form
    186,910.26/258,028.68 = 115,329.72/x
  3. Step 3: Cross multiply
    186,910.26x = 258,028.68 × 115,329.72
  4. Step 4: Simplify right side
    186,910.26x = 29,758,375,416.37
  5. Step 5: Solve for x
    x = 29,758,375,416.37/186,910.26
  6. Step 6: Final answer
    x = 159,212.10

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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.