Home / 122,922.40-184,383.60-121,172.80

Finding the Fourth Proportional to 122,922.40, 184,383.60 and 121,172.80

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Solution

The fourth proportional to 122,922.40, 184,383.60 and 121,172.80 is: 181,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,922.40 : 184,383.60 = 121,172.80 : x
  2. Step 2: Convert to fraction form
    122,922.40/184,383.60 = 121,172.80/x
  3. Step 3: Cross multiply
    122,922.40x = 184,383.60 × 121,172.80
  4. Step 4: Simplify right side
    122,922.40x = 22,342,277,086.08
  5. Step 5: Solve for x
    x = 22,342,277,086.08/122,922.40
  6. Step 6: Final answer
    x = 181,759.20

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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.