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Finding the Fourth Proportional to 135,485.60, 203,458.80 and 100,464.80

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Solution

The fourth proportional to 135,485.60, 203,458.80 and 100,464.80 is: 150,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,485.60 : 203,458.80 = 100,464.80 : x
  2. Step 2: Convert to fraction form
    135,485.60/203,458.80 = 100,464.80/x
  3. Step 3: Cross multiply
    135,485.60x = 203,458.80 × 100,464.80
  4. Step 4: Simplify right side
    135,485.60x = 20,440,447,650.24
  5. Step 5: Solve for x
    x = 20,440,447,650.24/135,485.60
  6. Step 6: Final answer
    x = 150,868.05

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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.