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Finding the Fourth Proportional to 137,394.68, 206,104.62 and 42,625.58

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Solution

The fourth proportional to 137,394.68, 206,104.62 and 42,625.58 is: 63,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,394.68 : 206,104.62 = 42,625.58 : x
  2. Step 2: Convert to fraction form
    137,394.68/206,104.62 = 42,625.58/x
  3. Step 3: Cross multiply
    137,394.68x = 206,104.62 × 42,625.58
  4. Step 4: Simplify right side
    137,394.68x = 8,785,328,968.18
  5. Step 5: Solve for x
    x = 8,785,328,968.18/137,394.68
  6. Step 6: Final answer
    x = 63,942.28

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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.