Home / 135,936.40-203,904.60-129,375.40

Finding the Fourth Proportional to 135,936.40, 203,904.60 and 129,375.40

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Solution

The fourth proportional to 135,936.40, 203,904.60 and 129,375.40 is: 194,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,936.40 : 203,904.60 = 129,375.40 : x
  2. Step 2: Convert to fraction form
    135,936.40/203,904.60 = 129,375.40/x
  3. Step 3: Cross multiply
    135,936.40x = 203,904.60 × 129,375.40
  4. Step 4: Simplify right side
    135,936.40x = 26,380,239,186.84
  5. Step 5: Solve for x
    x = 26,380,239,186.84/135,936.40
  6. Step 6: Final answer
    x = 194,063.10

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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.