Home / 106,834.56-160,414.92-90,409.92

Finding the Fourth Proportional to 106,834.56, 160,414.92 and 90,409.92

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Solution

The fourth proportional to 106,834.56, 160,414.92 and 90,409.92 is: 135,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,834.56 : 160,414.92 = 90,409.92 : x
  2. Step 2: Convert to fraction form
    106,834.56/160,414.92 = 90,409.92/x
  3. Step 3: Cross multiply
    106,834.56x = 160,414.92 × 90,409.92
  4. Step 4: Simplify right side
    106,834.56x = 14,503,100,084.01
  5. Step 5: Solve for x
    x = 14,503,100,084.01/106,834.56
  6. Step 6: Final answer
    x = 135,752.89

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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.