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Finding the Fourth Proportional to 133,388.37, 184,136 and 85,055.08

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Solution

The fourth proportional to 133,388.37, 184,136 and 85,055.08 is: 117,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,388.37 : 184,136 = 85,055.08 : x
  2. Step 2: Convert to fraction form
    133,388.37/184,136 = 85,055.08/x
  3. Step 3: Cross multiply
    133,388.37x = 184,136 × 85,055.08
  4. Step 4: Simplify right side
    133,388.37x = 15,661,702,210.88
  5. Step 5: Solve for x
    x = 15,661,702,210.88/133,388.37
  6. Step 6: Final answer
    x = 117,414.30

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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.