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Finding the Fourth Proportional to 167,813, 251,719.50 and 69,319.56

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Solution

The fourth proportional to 167,813, 251,719.50 and 69,319.56 is: 103,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,813 : 251,719.50 = 69,319.56 : x
  2. Step 2: Convert to fraction form
    167,813/251,719.50 = 69,319.56/x
  3. Step 3: Cross multiply
    167,813x = 251,719.50 × 69,319.56
  4. Step 4: Simplify right side
    167,813x = 17,449,084,983.42
  5. Step 5: Solve for x
    x = 17,449,084,983.42/167,813
  6. Step 6: Final answer
    x = 103,979.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.