Home / 135,817.44-203,590.53-68,142.72

Finding the Fourth Proportional to 135,817.44, 203,590.53 and 68,142.72

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Solution

The fourth proportional to 135,817.44, 203,590.53 and 68,142.72 is: 102,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,817.44 : 203,590.53 = 68,142.72 : x
  2. Step 2: Convert to fraction form
    135,817.44/203,590.53 = 68,142.72/x
  3. Step 3: Cross multiply
    135,817.44x = 203,590.53 × 68,142.72
  4. Step 4: Simplify right side
    135,817.44x = 13,873,212,480.44
  5. Step 5: Solve for x
    x = 13,873,212,480.44/135,817.44
  6. Step 6: Final answer
    x = 102,146.03

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1.5x scale

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.