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Finding the Fourth Proportional to 133,336.60, 200,235.30 and 71,128.60

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Solution

The fourth proportional to 133,336.60, 200,235.30 and 71,128.60 is: 106,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,336.60 : 200,235.30 = 71,128.60 : x
  2. Step 2: Convert to fraction form
    133,336.60/200,235.30 = 71,128.60/x
  3. Step 3: Cross multiply
    133,336.60x = 200,235.30 × 71,128.60
  4. Step 4: Simplify right side
    133,336.60x = 14,242,456,559.58
  5. Step 5: Solve for x
    x = 14,242,456,559.58/133,336.60
  6. Step 6: Final answer
    x = 106,815.81

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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.