Home / 168,918.45-253,377.36-80,123.46

Finding the Fourth Proportional to 168,918.45, 253,377.36 and 80,123.46

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Solution

The fourth proportional to 168,918.45, 253,377.36 and 80,123.46 is: 120,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,918.45 : 253,377.36 = 80,123.46 : x
  2. Step 2: Convert to fraction form
    168,918.45/253,377.36 = 80,123.46/x
  3. Step 3: Cross multiply
    168,918.45x = 253,377.36 × 80,123.46
  4. Step 4: Simplify right side
    168,918.45x = 20,301,470,768.87
  5. Step 5: Solve for x
    x = 20,301,470,768.87/168,918.45
  6. Step 6: Final answer
    x = 120,185.04

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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.