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Finding the Fourth Proportional to 173,086.68, 259,661.62 and 79,590

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Solution

The fourth proportional to 173,086.68, 259,661.62 and 79,590 is: 119,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,086.68 : 259,661.62 = 79,590 : x
  2. Step 2: Convert to fraction form
    173,086.68/259,661.62 = 79,590/x
  3. Step 3: Cross multiply
    173,086.68x = 259,661.62 × 79,590
  4. Step 4: Simplify right side
    173,086.68x = 20,666,468,335.80
  5. Step 5: Solve for x
    x = 20,666,468,335.80/173,086.68
  6. Step 6: Final answer
    x = 119,399.53

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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.