Home / 252,103.35-378,225.30-109,961.31

Finding the Fourth Proportional to 252,103.35, 378,225.30 and 109,961.31

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Solution

The fourth proportional to 252,103.35, 378,225.30 and 109,961.31 is: 164,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,103.35 : 378,225.30 = 109,961.31 : x
  2. Step 2: Convert to fraction form
    252,103.35/378,225.30 = 109,961.31/x
  3. Step 3: Cross multiply
    252,103.35x = 378,225.30 × 109,961.31
  4. Step 4: Simplify right side
    252,103.35x = 41,590,149,463.14
  5. Step 5: Solve for x
    x = 41,590,149,463.14/252,103.35
  6. Step 6: Final answer
    x = 164,972.62

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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.