Home / 321,120.09-481,747.77-121,436.06

Finding the Fourth Proportional to 321,120.09, 481,747.77 and 121,436.06

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Solution

The fourth proportional to 321,120.09, 481,747.77 and 121,436.06 is: 182,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,120.09 : 481,747.77 = 121,436.06 : x
  2. Step 2: Convert to fraction form
    321,120.09/481,747.77 = 121,436.06/x
  3. Step 3: Cross multiply
    321,120.09x = 481,747.77 × 121,436.06
  4. Step 4: Simplify right side
    321,120.09x = 58,501,548,693.85
  5. Step 5: Solve for x
    x = 58,501,548,693.85/321,120.09
  6. Step 6: Final answer
    x = 182,179.66

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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.