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Finding the Fourth Proportional to 137,040.70, 205,532.80 and 52,771.94

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Solution

The fourth proportional to 137,040.70, 205,532.80 and 52,771.94 is: 79,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,040.70 : 205,532.80 = 52,771.94 : x
  2. Step 2: Convert to fraction form
    137,040.70/205,532.80 = 52,771.94/x
  3. Step 3: Cross multiply
    137,040.70x = 205,532.80 × 52,771.94
  4. Step 4: Simplify right side
    137,040.70x = 10,846,364,589.63
  5. Step 5: Solve for x
    x = 10,846,364,589.63/137,040.70
  6. Step 6: Final answer
    x = 79,147.03

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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.