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Finding the Fourth Proportional to 122,703.60, 183,958.20 and 67,299.60

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Solution

The fourth proportional to 122,703.60, 183,958.20 and 67,299.60 is: 100,896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,703.60 : 183,958.20 = 67,299.60 : x
  2. Step 2: Convert to fraction form
    122,703.60/183,958.20 = 67,299.60/x
  3. Step 3: Cross multiply
    122,703.60x = 183,958.20 × 67,299.60
  4. Step 4: Simplify right side
    122,703.60x = 12,380,313,276.72
  5. Step 5: Solve for x
    x = 12,380,313,276.72/122,703.60
  6. Step 6: Final answer
    x = 100,896.09

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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.