Home / 167,621.44-251,266.04-78,715.80

Finding the Fourth Proportional to 167,621.44, 251,266.04 and 78,715.80

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Solution

The fourth proportional to 167,621.44, 251,266.04 and 78,715.80 is: 117,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,621.44 : 251,266.04 = 78,715.80 : x
  2. Step 2: Convert to fraction form
    167,621.44/251,266.04 = 78,715.80/x
  3. Step 3: Cross multiply
    167,621.44x = 251,266.04 × 78,715.80
  4. Step 4: Simplify right side
    167,621.44x = 19,778,607,351.43
  5. Step 5: Solve for x
    x = 19,778,607,351.43/167,621.44
  6. Step 6: Final answer
    x = 117,995.69

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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.