Home / 254,134.18-381,194.79-67,147.30

Finding the Fourth Proportional to 254,134.18, 381,194.79 and 67,147.30

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Solution

The fourth proportional to 254,134.18, 381,194.79 and 67,147.30 is: 100,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,134.18 : 381,194.79 = 67,147.30 : x
  2. Step 2: Convert to fraction form
    254,134.18/381,194.79 = 67,147.30/x
  3. Step 3: Cross multiply
    254,134.18x = 381,194.79 × 67,147.30
  4. Step 4: Simplify right side
    254,134.18x = 25,596,200,922.57
  5. Step 5: Solve for x
    x = 25,596,200,922.57/254,134.18
  6. Step 6: Final answer
    x = 100,719.24

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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.