Home / 115,704.75-173,311.02-68,268.72

Finding the Fourth Proportional to 115,704.75, 173,311.02 and 68,268.72

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Solution

The fourth proportional to 115,704.75, 173,311.02 and 68,268.72 is: 102,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,704.75 : 173,311.02 = 68,268.72 : x
  2. Step 2: Convert to fraction form
    115,704.75/173,311.02 = 68,268.72/x
  3. Step 3: Cross multiply
    115,704.75x = 173,311.02 × 68,268.72
  4. Step 4: Simplify right side
    115,704.75x = 11,831,721,497.29
  5. Step 5: Solve for x
    x = 11,831,721,497.29/115,704.75
  6. Step 6: Final answer
    x = 102,257.87

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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.