Home / 106,769.85-159,863.18-77,026.65

Finding the Fourth Proportional to 106,769.85, 159,863.18 and 77,026.65

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Solution

The fourth proportional to 106,769.85, 159,863.18 and 77,026.65 is: 115,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,769.85 : 159,863.18 = 77,026.65 : x
  2. Step 2: Convert to fraction form
    106,769.85/159,863.18 = 77,026.65/x
  3. Step 3: Cross multiply
    106,769.85x = 159,863.18 × 77,026.65
  4. Step 4: Simplify right side
    106,769.85x = 12,313,724,828.61
  5. Step 5: Solve for x
    x = 12,313,724,828.61/106,769.85
  6. Step 6: Final answer
    x = 115,329.61

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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.