Home / 106,520.93-159,659.97-66,558.36

Finding the Fourth Proportional to 106,520.93, 159,659.97 and 66,558.36

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Solution

The fourth proportional to 106,520.93, 159,659.97 and 66,558.36 is: 99,761.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,520.93 : 159,659.97 = 66,558.36 : x
  2. Step 2: Convert to fraction form
    106,520.93/159,659.97 = 66,558.36/x
  3. Step 3: Cross multiply
    106,520.93x = 159,659.97 × 66,558.36
  4. Step 4: Simplify right side
    106,520.93x = 10,626,705,760.85
  5. Step 5: Solve for x
    x = 10,626,705,760.85/106,520.93
  6. Step 6: Final answer
    x = 99,761.67

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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.