Home / 165,076.37-227,295.31-128,923.85

Finding the Fourth Proportional to 165,076.37, 227,295.31 and 128,923.85

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Solution

The fourth proportional to 165,076.37, 227,295.31 and 128,923.85 is: 177,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,076.37 : 227,295.31 = 128,923.85 : x
  2. Step 2: Convert to fraction form
    165,076.37/227,295.31 = 128,923.85/x
  3. Step 3: Cross multiply
    165,076.37x = 227,295.31 × 128,923.85
  4. Step 4: Simplify right side
    165,076.37x = 29,303,784,993.36
  5. Step 5: Solve for x
    x = 29,303,784,993.36/165,076.37
  6. Step 6: Final answer
    x = 177,516.54

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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.