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Finding the Fourth Proportional to 133,677, 200,455.58 and 79,667.20

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Solution

The fourth proportional to 133,677, 200,455.58 and 79,667.20 is: 119,465.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,677 : 200,455.58 = 79,667.20 : x
  2. Step 2: Convert to fraction form
    133,677/200,455.58 = 79,667.20/x
  3. Step 3: Cross multiply
    133,677x = 200,455.58 × 79,667.20
  4. Step 4: Simplify right side
    133,677x = 15,969,734,782.98
  5. Step 5: Solve for x
    x = 15,969,734,782.98/133,677
  6. Step 6: Final answer
    x = 119,465.09

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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.