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Finding the Fourth Proportional to 122,922.40, 184,383.60 and 84,868.60

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Solution

The fourth proportional to 122,922.40, 184,383.60 and 84,868.60 is: 127,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,922.40 : 184,383.60 = 84,868.60 : x
  2. Step 2: Convert to fraction form
    122,922.40/184,383.60 = 84,868.60/x
  3. Step 3: Cross multiply
    122,922.40x = 184,383.60 × 84,868.60
  4. Step 4: Simplify right side
    122,922.40x = 15,648,377,994.96
  5. Step 5: Solve for x
    x = 15,648,377,994.96/122,922.40
  6. Step 6: Final answer
    x = 127,302.90

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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.