Home / 203,548.14-305,323.02-85,136.43

Finding the Fourth Proportional to 203,548.14, 305,323.02 and 85,136.43

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Solution

The fourth proportional to 203,548.14, 305,323.02 and 85,136.43 is: 127,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,548.14 : 305,323.02 = 85,136.43 : x
  2. Step 2: Convert to fraction form
    203,548.14/305,323.02 = 85,136.43/x
  3. Step 3: Cross multiply
    203,548.14x = 305,323.02 × 85,136.43
  4. Step 4: Simplify right side
    203,548.14x = 25,994,111,919.62
  5. Step 5: Solve for x
    x = 25,994,111,919.62/203,548.14
  6. Step 6: Final answer
    x = 127,704.98

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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.