Home / 169,629.31-254,056.43-80,945.09

Finding the Fourth Proportional to 169,629.31, 254,056.43 and 80,945.09

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Solution

The fourth proportional to 169,629.31, 254,056.43 and 80,945.09 is: 121,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,629.31 : 254,056.43 = 80,945.09 : x
  2. Step 2: Convert to fraction form
    169,629.31/254,056.43 = 80,945.09/x
  3. Step 3: Cross multiply
    169,629.31x = 254,056.43 × 80,945.09
  4. Step 4: Simplify right side
    169,629.31x = 20,564,620,821.84
  5. Step 5: Solve for x
    x = 20,564,620,821.84/169,629.31
  6. Step 6: Final answer
    x = 121,232.71

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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.