Home / 120,679.10-165,946.67-104,735.87

Finding the Fourth Proportional to 120,679.10, 165,946.67 and 104,735.87

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Solution

The fourth proportional to 120,679.10, 165,946.67 and 104,735.87 is: 144,023.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679.10 : 165,946.67 = 104,735.87 : x
  2. Step 2: Convert to fraction form
    120,679.10/165,946.67 = 104,735.87/x
  3. Step 3: Cross multiply
    120,679.10x = 165,946.67 × 104,735.87
  4. Step 4: Simplify right side
    120,679.10x = 17,380,568,517.70
  5. Step 5: Solve for x
    x = 17,380,568,517.70/120,679.10
  6. Step 6: Final answer
    x = 144,023.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.