Home / 192,589.13-288,984.42-78,821.39

Finding the Fourth Proportional to 192,589.13, 288,984.42 and 78,821.39

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Solution

The fourth proportional to 192,589.13, 288,984.42 and 78,821.39 is: 118,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,589.13 : 288,984.42 = 78,821.39 : x
  2. Step 2: Convert to fraction form
    192,589.13/288,984.42 = 78,821.39/x
  3. Step 3: Cross multiply
    192,589.13x = 288,984.42 × 78,821.39
  4. Step 4: Simplify right side
    192,589.13x = 22,778,153,672.74
  5. Step 5: Solve for x
    x = 22,778,153,672.74/192,589.13
  6. Step 6: Final answer
    x = 118,273.31

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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.