Home / 123,074.60-184,997.26-81,223.60

Finding the Fourth Proportional to 123,074.60, 184,997.26 and 81,223.60

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Solution

The fourth proportional to 123,074.60, 184,997.26 and 81,223.60 is: 122,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,074.60 : 184,997.26 = 81,223.60 : x
  2. Step 2: Convert to fraction form
    123,074.60/184,997.26 = 81,223.60/x
  3. Step 3: Cross multiply
    123,074.60x = 184,997.26 × 81,223.60
  4. Step 4: Simplify right side
    123,074.60x = 15,026,143,447.34
  5. Step 5: Solve for x
    x = 15,026,143,447.34/123,074.60
  6. Step 6: Final answer
    x = 122,089.72

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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.