Home / 167,986.32-251,988.68-68,131.68

Finding the Fourth Proportional to 167,986.32, 251,988.68 and 68,131.68

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Solution

The fourth proportional to 167,986.32, 251,988.68 and 68,131.68 is: 102,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,986.32 : 251,988.68 = 68,131.68 : x
  2. Step 2: Convert to fraction form
    167,986.32/251,988.68 = 68,131.68/x
  3. Step 3: Cross multiply
    167,986.32x = 251,988.68 × 68,131.68
  4. Step 4: Simplify right side
    167,986.32x = 17,168,412,109.38
  5. Step 5: Solve for x
    x = 17,168,412,109.38/167,986.32
  6. Step 6: Final answer
    x = 102,201.25

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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.