Home / 135,968.20-203,952.30-72,982.60

Finding the Fourth Proportional to 135,968.20, 203,952.30 and 72,982.60

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Solution

The fourth proportional to 135,968.20, 203,952.30 and 72,982.60 is: 109,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,968.20 : 203,952.30 = 72,982.60 : x
  2. Step 2: Convert to fraction form
    135,968.20/203,952.30 = 72,982.60/x
  3. Step 3: Cross multiply
    135,968.20x = 203,952.30 × 72,982.60
  4. Step 4: Simplify right side
    135,968.20x = 14,884,969,129.98
  5. Step 5: Solve for x
    x = 14,884,969,129.98/135,968.20
  6. Step 6: Final answer
    x = 109,473.90

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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.