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Finding the Fourth Proportional to 134,794.80, 202,235.40 and 90,471.60

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Solution

The fourth proportional to 134,794.80, 202,235.40 and 90,471.60 is: 135,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,794.80 : 202,235.40 = 90,471.60 : x
  2. Step 2: Convert to fraction form
    134,794.80/202,235.40 = 90,471.60/x
  3. Step 3: Cross multiply
    134,794.80x = 202,235.40 × 90,471.60
  4. Step 4: Simplify right side
    134,794.80x = 18,296,560,214.64
  5. Step 5: Solve for x
    x = 18,296,560,214.64/134,794.80
  6. Step 6: Final answer
    x = 135,736.39

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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.