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Finding the Fourth Proportional to 173,755.80, 239,633.64 and 137,889

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Solution

The fourth proportional to 173,755.80, 239,633.64 and 137,889 is: 190,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,755.80 : 239,633.64 = 137,889 : x
  2. Step 2: Convert to fraction form
    173,755.80/239,633.64 = 137,889/x
  3. Step 3: Cross multiply
    173,755.80x = 239,633.64 × 137,889
  4. Step 4: Simplify right side
    173,755.80x = 33,042,842,985.96
  5. Step 5: Solve for x
    x = 33,042,842,985.96/173,755.80
  6. Step 6: Final answer
    x = 190,168.29

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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.