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Finding the Fourth Proportional to 133,422.54, 184,120.34 and 72,993.03

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Solution

The fourth proportional to 133,422.54, 184,120.34 and 72,993.03 is: 100,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,422.54 : 184,120.34 = 72,993.03 : x
  2. Step 2: Convert to fraction form
    133,422.54/184,120.34 = 72,993.03/x
  3. Step 3: Cross multiply
    133,422.54x = 184,120.34 × 72,993.03
  4. Step 4: Simplify right side
    133,422.54x = 13,439,501,136.27
  5. Step 5: Solve for x
    x = 13,439,501,136.27/133,422.54
  6. Step 6: Final answer
    x = 100,728.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.