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Finding the Fourth Proportional to 122,969.61, 184,544.33 and 78,704.73

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Solution

The fourth proportional to 122,969.61, 184,544.33 and 78,704.73 is: 118,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,969.61 : 184,544.33 = 78,704.73 : x
  2. Step 2: Convert to fraction form
    122,969.61/184,544.33 = 78,704.73/x
  3. Step 3: Cross multiply
    122,969.61x = 184,544.33 × 78,704.73
  4. Step 4: Simplify right side
    122,969.61x = 14,524,511,272.16
  5. Step 5: Solve for x
    x = 14,524,511,272.16/122,969.61
  6. Step 6: Final answer
    x = 118,114.64

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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.