Home / 117,609.27-162,289.09-66,611.83

Finding the Fourth Proportional to 117,609.27, 162,289.09 and 66,611.83

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Solution

The fourth proportional to 117,609.27, 162,289.09 and 66,611.83 is: 91,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,609.27 : 162,289.09 = 66,611.83 : x
  2. Step 2: Convert to fraction form
    117,609.27/162,289.09 = 66,611.83/x
  3. Step 3: Cross multiply
    117,609.27x = 162,289.09 × 66,611.83
  4. Step 4: Simplify right side
    117,609.27x = 10,810,372,940.88
  5. Step 5: Solve for x
    x = 10,810,372,940.88/117,609.27
  6. Step 6: Final answer
    x = 91,917.69

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1.5x scale

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.