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Finding the Fourth Proportional to 137,173.21, 205,818.83 and 52,992.63

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Solution

The fourth proportional to 137,173.21, 205,818.83 and 52,992.63 is: 79,511.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,173.21 : 205,818.83 = 52,992.63 : x
  2. Step 2: Convert to fraction form
    137,173.21/205,818.83 = 52,992.63/x
  3. Step 3: Cross multiply
    137,173.21x = 205,818.83 × 52,992.63
  4. Step 4: Simplify right side
    137,173.21x = 10,906,881,559.79
  5. Step 5: Solve for x
    x = 10,906,881,559.79/137,173.21
  6. Step 6: Final answer
    x = 79,511.75

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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.