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Finding the Fourth Proportional to 137,774.21, 206,669.00 and 43,017.47

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Solution

The fourth proportional to 137,774.21, 206,669.00 and 43,017.47 is: 64,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,774.21 : 206,669.00 = 43,017.47 : x
  2. Step 2: Convert to fraction form
    137,774.21/206,669.00 = 43,017.47/x
  3. Step 3: Cross multiply
    137,774.21x = 206,669.00 × 43,017.47
  4. Step 4: Simplify right side
    137,774.21x = 8,890,377,356.64
  5. Step 5: Solve for x
    x = 8,890,377,356.64/137,774.21
  6. Step 6: Final answer
    x = 64,528.61

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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.