Home / 111,941.24-167,735.97-78,173.96

Finding the Fourth Proportional to 111,941.24, 167,735.97 and 78,173.96

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Solution

The fourth proportional to 111,941.24, 167,735.97 and 78,173.96 is: 117,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,941.24 : 167,735.97 = 78,173.96 : x
  2. Step 2: Convert to fraction form
    111,941.24/167,735.97 = 78,173.96/x
  3. Step 3: Cross multiply
    111,941.24x = 167,735.97 × 78,173.96
  4. Step 4: Simplify right side
    111,941.24x = 13,112,584,170.66
  5. Step 5: Solve for x
    x = 13,112,584,170.66/111,941.24
  6. Step 6: Final answer
    x = 117,138.11

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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.