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Finding the Fourth Proportional to 135,205.80, 203,154.30 and 119,999.40

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Solution

The fourth proportional to 135,205.80, 203,154.30 and 119,999.40 is: 180,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,205.80 : 203,154.30 = 119,999.40 : x
  2. Step 2: Convert to fraction form
    135,205.80/203,154.30 = 119,999.40/x
  3. Step 3: Cross multiply
    135,205.80x = 203,154.30 × 119,999.40
  4. Step 4: Simplify right side
    135,205.80x = 24,378,394,107.42
  5. Step 5: Solve for x
    x = 24,378,394,107.42/135,205.80
  6. Step 6: Final answer
    x = 180,305.83

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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.