Home / 111,481.21-167,268.67-69,396.50

Finding the Fourth Proportional to 111,481.21, 167,268.67 and 69,396.50

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Solution

The fourth proportional to 111,481.21, 167,268.67 and 69,396.50 is: 104,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,481.21 : 167,268.67 = 69,396.50 : x
  2. Step 2: Convert to fraction form
    111,481.21/167,268.67 = 69,396.50/x
  3. Step 3: Cross multiply
    111,481.21x = 167,268.67 × 69,396.50
  4. Step 4: Simplify right side
    111,481.21x = 11,607,859,756.63
  5. Step 5: Solve for x
    x = 11,607,859,756.63/111,481.21
  6. Step 6: Final answer
    x = 104,123.91

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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.