Home / 155,835.44-214,911.72-102,100.88

Finding the Fourth Proportional to 155,835.44, 214,911.72 and 102,100.88

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Solution

The fourth proportional to 155,835.44, 214,911.72 and 102,100.88 is: 140,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,835.44 : 214,911.72 = 102,100.88 : x
  2. Step 2: Convert to fraction form
    155,835.44/214,911.72 = 102,100.88/x
  3. Step 3: Cross multiply
    155,835.44x = 214,911.72 × 102,100.88
  4. Step 4: Simplify right side
    155,835.44x = 21,942,675,734.31
  5. Step 5: Solve for x
    x = 21,942,675,734.31/155,835.44
  6. Step 6: Final answer
    x = 140,806.71

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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.