Home / 110,400.70-165,601.05-66,163.90

Finding the Fourth Proportional to 110,400.70, 165,601.05 and 66,163.90

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Solution

The fourth proportional to 110,400.70, 165,601.05 and 66,163.90 is: 99,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,400.70 : 165,601.05 = 66,163.90 : x
  2. Step 2: Convert to fraction form
    110,400.70/165,601.05 = 66,163.90/x
  3. Step 3: Cross multiply
    110,400.70x = 165,601.05 × 66,163.90
  4. Step 4: Simplify right side
    110,400.70x = 10,956,811,312.10
  5. Step 5: Solve for x
    x = 10,956,811,312.10/110,400.70
  6. Step 6: Final answer
    x = 99,245.85

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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.