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Finding the Fourth Proportional to 173,085.68, 259,660.12 and 79,589

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Solution

The fourth proportional to 173,085.68, 259,660.12 and 79,589 is: 119,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,085.68 : 259,660.12 = 79,589 : x
  2. Step 2: Convert to fraction form
    173,085.68/259,660.12 = 79,589/x
  3. Step 3: Cross multiply
    173,085.68x = 259,660.12 × 79,589
  4. Step 4: Simplify right side
    173,085.68x = 20,666,089,290.68
  5. Step 5: Solve for x
    x = 20,666,089,290.68/173,085.68
  6. Step 6: Final answer
    x = 119,398.03

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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.