Home / 107,694.43-148,664.26-76,669.67

Finding the Fourth Proportional to 107,694.43, 148,664.26 and 76,669.67

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Solution

The fourth proportional to 107,694.43, 148,664.26 and 76,669.67 is: 105,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,694.43 : 148,664.26 = 76,669.67 : x
  2. Step 2: Convert to fraction form
    107,694.43/148,664.26 = 76,669.67/x
  3. Step 3: Cross multiply
    107,694.43x = 148,664.26 × 76,669.67
  4. Step 4: Simplify right side
    107,694.43x = 11,398,039,754.99
  5. Step 5: Solve for x
    x = 11,398,039,754.99/107,694.43
  6. Step 6: Final answer
    x = 105,836.85

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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.