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Finding the Fourth Proportional to 173,906.78, 239,984.48 and 98,455.28

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Solution

The fourth proportional to 173,906.78, 239,984.48 and 98,455.28 is: 135,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,906.78 : 239,984.48 = 98,455.28 : x
  2. Step 2: Convert to fraction form
    173,906.78/239,984.48 = 98,455.28/x
  3. Step 3: Cross multiply
    173,906.78x = 239,984.48 × 98,455.28
  4. Step 4: Simplify right side
    173,906.78x = 23,627,739,174.05
  5. Step 5: Solve for x
    x = 23,627,739,174.05/173,906.78
  6. Step 6: Final answer
    x = 135,864.39

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