Home / 165,121.09-227,936.86-111,478.77

Finding the Fourth Proportional to 165,121.09, 227,936.86 and 111,478.77

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Solution

The fourth proportional to 165,121.09, 227,936.86 and 111,478.77 is: 153,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,121.09 : 227,936.86 = 111,478.77 : x
  2. Step 2: Convert to fraction form
    165,121.09/227,936.86 = 111,478.77/x
  3. Step 3: Cross multiply
    165,121.09x = 227,936.86 × 111,478.77
  4. Step 4: Simplify right side
    165,121.09x = 25,410,120,790.46
  5. Step 5: Solve for x
    x = 25,410,120,790.46/165,121.09
  6. Step 6: Final answer
    x = 153,887.80

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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.