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Finding the Fourth Proportional to 135,969.66, 203,933.40 and 69,458.94

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Solution

The fourth proportional to 135,969.66, 203,933.40 and 69,458.94 is: 104,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,969.66 : 203,933.40 = 69,458.94 : x
  2. Step 2: Convert to fraction form
    135,969.66/203,933.40 = 69,458.94/x
  3. Step 3: Cross multiply
    135,969.66x = 203,933.40 × 69,458.94
  4. Step 4: Simplify right side
    135,969.66x = 14,164,997,794.60
  5. Step 5: Solve for x
    x = 14,164,997,794.60/135,969.66
  6. Step 6: Final answer
    x = 104,177.64

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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.