Home / 122,821.20-184,145.40-47,912.40

Finding the Fourth Proportional to 122,821.20, 184,145.40 and 47,912.40

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Solution

The fourth proportional to 122,821.20, 184,145.40 and 47,912.40 is: 71,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,821.20 : 184,145.40 = 47,912.40 : x
  2. Step 2: Convert to fraction form
    122,821.20/184,145.40 = 47,912.40/x
  3. Step 3: Cross multiply
    122,821.20x = 184,145.40 × 47,912.40
  4. Step 4: Simplify right side
    122,821.20x = 8,822,848,062.96
  5. Step 5: Solve for x
    x = 8,822,848,062.96/122,821.20
  6. Step 6: Final answer
    x = 71,834.90

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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.