Home / 104,690.06-156,975.41-71,450.36

Finding the Fourth Proportional to 104,690.06, 156,975.41 and 71,450.36

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Solution

The fourth proportional to 104,690.06, 156,975.41 and 71,450.36 is: 107,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.06 : 156,975.41 = 71,450.36 : x
  2. Step 2: Convert to fraction form
    104,690.06/156,975.41 = 71,450.36/x
  3. Step 3: Cross multiply
    104,690.06x = 156,975.41 × 71,450.36
  4. Step 4: Simplify right side
    104,690.06x = 11,215,948,413.52
  5. Step 5: Solve for x
    x = 11,215,948,413.52/104,690.06
  6. Step 6: Final answer
    x = 107,134.80

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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.