Home / 203,889.40-305,832.54-83,945.56

Finding the Fourth Proportional to 203,889.40, 305,832.54 and 83,945.56

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Solution

The fourth proportional to 203,889.40, 305,832.54 and 83,945.56 is: 125,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,889.40 : 305,832.54 = 83,945.56 : x
  2. Step 2: Convert to fraction form
    203,889.40/305,832.54 = 83,945.56/x
  3. Step 3: Cross multiply
    203,889.40x = 305,832.54 × 83,945.56
  4. Step 4: Simplify right side
    203,889.40x = 25,673,283,836.52
  5. Step 5: Solve for x
    x = 25,673,283,836.52/203,889.40
  6. Step 6: Final answer
    x = 125,917.70

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1.5x scale

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.