Home / 168,936.75-253,202.90-78,858.27

Finding the Fourth Proportional to 168,936.75, 253,202.90 and 78,858.27

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Solution

The fourth proportional to 168,936.75, 253,202.90 and 78,858.27 is: 118,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,936.75 : 253,202.90 = 78,858.27 : x
  2. Step 2: Convert to fraction form
    168,936.75/253,202.90 = 78,858.27/x
  3. Step 3: Cross multiply
    168,936.75x = 253,202.90 × 78,858.27
  4. Step 4: Simplify right side
    168,936.75x = 19,967,142,258.69
  5. Step 5: Solve for x
    x = 19,967,142,258.69/168,936.75
  6. Step 6: Final answer
    x = 118,193.01

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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.