Home / 134,716.34-185,949.33-78,141.62

Finding the Fourth Proportional to 134,716.34, 185,949.33 and 78,141.62

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Solution

The fourth proportional to 134,716.34, 185,949.33 and 78,141.62 is: 107,859.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,716.34 : 185,949.33 = 78,141.62 : x
  2. Step 2: Convert to fraction form
    134,716.34/185,949.33 = 78,141.62/x
  3. Step 3: Cross multiply
    134,716.34x = 185,949.33 × 78,141.62
  4. Step 4: Simplify right side
    134,716.34x = 14,530,381,884.11
  5. Step 5: Solve for x
    x = 14,530,381,884.11/134,716.34
  6. Step 6: Final answer
    x = 107,859.09

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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.