Home / 204,942.30-307,085.40-134,739.60

Finding the Fourth Proportional to 204,942.30, 307,085.40 and 134,739.60

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Solution

The fourth proportional to 204,942.30, 307,085.40 and 134,739.60 is: 201,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,942.30 : 307,085.40 = 134,739.60 : x
  2. Step 2: Convert to fraction form
    204,942.30/307,085.40 = 134,739.60/x
  3. Step 3: Cross multiply
    204,942.30x = 307,085.40 × 134,739.60
  4. Step 4: Simplify right side
    204,942.30x = 41,376,563,961.84
  5. Step 5: Solve for x
    x = 41,376,563,961.84/204,942.30
  6. Step 6: Final answer
    x = 201,893.72

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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.