Home / 122,976.40-184,464.60-91,872.40

Finding the Fourth Proportional to 122,976.40, 184,464.60 and 91,872.40

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Solution

The fourth proportional to 122,976.40, 184,464.60 and 91,872.40 is: 137,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,976.40 : 184,464.60 = 91,872.40 : x
  2. Step 2: Convert to fraction form
    122,976.40/184,464.60 = 91,872.40/x
  3. Step 3: Cross multiply
    122,976.40x = 184,464.60 × 91,872.40
  4. Step 4: Simplify right side
    122,976.40x = 16,947,205,517.04
  5. Step 5: Solve for x
    x = 16,947,205,517.04/122,976.40
  6. Step 6: Final answer
    x = 137,808.60

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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.