Home / 135,000.20-202,500.30-72,014.60

Finding the Fourth Proportional to 135,000.20, 202,500.30 and 72,014.60

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Solution

The fourth proportional to 135,000.20, 202,500.30 and 72,014.60 is: 108,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,000.20 : 202,500.30 = 72,014.60 : x
  2. Step 2: Convert to fraction form
    135,000.20/202,500.30 = 72,014.60/x
  3. Step 3: Cross multiply
    135,000.20x = 202,500.30 × 72,014.60
  4. Step 4: Simplify right side
    135,000.20x = 14,582,978,104.38
  5. Step 5: Solve for x
    x = 14,582,978,104.38/135,000.20
  6. Step 6: Final answer
    x = 108,021.90

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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.