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Finding the Fourth Proportional to 133,855.56, 184,719.15 and 77,265.72

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Solution

The fourth proportional to 133,855.56, 184,719.15 and 77,265.72 is: 106,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,855.56 : 184,719.15 = 77,265.72 : x
  2. Step 2: Convert to fraction form
    133,855.56/184,719.15 = 77,265.72/x
  3. Step 3: Cross multiply
    133,855.56x = 184,719.15 × 77,265.72
  4. Step 4: Simplify right side
    133,855.56x = 14,272,458,122.54
  5. Step 5: Solve for x
    x = 14,272,458,122.54/133,855.56
  6. Step 6: Final answer
    x = 106,625.81

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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.