Home / 184,991.12-255,114.48-122,791.60

Finding the Fourth Proportional to 184,991.12, 255,114.48 and 122,791.60

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Solution

The fourth proportional to 184,991.12, 255,114.48 and 122,791.60 is: 169,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,991.12 : 255,114.48 = 122,791.60 : x
  2. Step 2: Convert to fraction form
    184,991.12/255,114.48 = 122,791.60/x
  3. Step 3: Cross multiply
    184,991.12x = 255,114.48 × 122,791.60
  4. Step 4: Simplify right side
    184,991.12x = 31,325,915,182.37
  5. Step 5: Solve for x
    x = 31,325,915,182.37/184,991.12
  6. Step 6: Final answer
    x = 169,337.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.