Home / 167,919.12-251,889.84-68,078.16

Finding the Fourth Proportional to 167,919.12, 251,889.84 and 68,078.16

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Solution

The fourth proportional to 167,919.12, 251,889.84 and 68,078.16 is: 102,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,919.12 : 251,889.84 = 68,078.16 : x
  2. Step 2: Convert to fraction form
    167,919.12/251,889.84 = 68,078.16/x
  3. Step 3: Cross multiply
    167,919.12x = 251,889.84 × 68,078.16
  4. Step 4: Simplify right side
    167,919.12x = 17,148,196,829.89
  5. Step 5: Solve for x
    x = 17,148,196,829.89/167,919.12
  6. Step 6: Final answer
    x = 102,121.76

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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.