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Finding the Fourth Proportional to 135,946.80, 203,920.20 and 123,262.20

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Solution

The fourth proportional to 135,946.80, 203,920.20 and 123,262.20 is: 184,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,946.80 : 203,920.20 = 123,262.20 : x
  2. Step 2: Convert to fraction form
    135,946.80/203,920.20 = 123,262.20/x
  3. Step 3: Cross multiply
    135,946.80x = 203,920.20 × 123,262.20
  4. Step 4: Simplify right side
    135,946.80x = 25,135,652,476.44
  5. Step 5: Solve for x
    x = 25,135,652,476.44/135,946.80
  6. Step 6: Final answer
    x = 184,893.30

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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.