Home / 218,556.05-301,616.66-121,759.85

Finding the Fourth Proportional to 218,556.05, 301,616.66 and 121,759.85

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Solution

The fourth proportional to 218,556.05, 301,616.66 and 121,759.85 is: 168,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,556.05 : 301,616.66 = 121,759.85 : x
  2. Step 2: Convert to fraction form
    218,556.05/301,616.66 = 121,759.85/x
  3. Step 3: Cross multiply
    218,556.05x = 301,616.66 × 121,759.85
  4. Step 4: Simplify right side
    218,556.05x = 36,724,799,424.34
  5. Step 5: Solve for x
    x = 36,724,799,424.34/218,556.05
  6. Step 6: Final answer
    x = 168,033.78

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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.