Home / 102,786.68-154,257.92-43,663.84

Finding the Fourth Proportional to 102,786.68, 154,257.92 and 43,663.84

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Solution

The fourth proportional to 102,786.68, 154,257.92 and 43,663.84 is: 65,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.68 : 154,257.92 = 43,663.84 : x
  2. Step 2: Convert to fraction form
    102,786.68/154,257.92 = 43,663.84/x
  3. Step 3: Cross multiply
    102,786.68x = 154,257.92 × 43,663.84
  4. Step 4: Simplify right side
    102,786.68x = 6,735,493,137.61
  5. Step 5: Solve for x
    x = 6,735,493,137.61/102,786.68
  6. Step 6: Final answer
    x = 65,528.85

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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.