Home / 165,121.10-227,936.87-111,478.77

Finding the Fourth Proportional to 165,121.10, 227,936.87 and 111,478.77

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Solution

The fourth proportional to 165,121.10, 227,936.87 and 111,478.77 is: 153,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,121.10 : 227,936.87 = 111,478.77 : x
  2. Step 2: Convert to fraction form
    165,121.10/227,936.87 = 111,478.77/x
  3. Step 3: Cross multiply
    165,121.10x = 227,936.87 × 111,478.77
  4. Step 4: Simplify right side
    165,121.10x = 25,410,121,347.86
  5. Step 5: Solve for x
    x = 25,410,121,347.86/165,121.10
  6. Step 6: Final answer
    x = 153,887.80

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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.