Home / 252,136.51-347,942.39-137,418.78

Finding the Fourth Proportional to 252,136.51, 347,942.39 and 137,418.78

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Solution

The fourth proportional to 252,136.51, 347,942.39 and 137,418.78 is: 189,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,136.51 : 347,942.39 = 137,418.78 : x
  2. Step 2: Convert to fraction form
    252,136.51/347,942.39 = 137,418.78/x
  3. Step 3: Cross multiply
    252,136.51x = 347,942.39 × 137,418.78
  4. Step 4: Simplify right side
    252,136.51x = 47,813,817,004.37
  5. Step 5: Solve for x
    x = 47,813,817,004.37/252,136.51
  6. Step 6: Final answer
    x = 189,634.64

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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.