Home / 100,621.86-150,735.60-58,413.48

Finding the Fourth Proportional to 100,621.86, 150,735.60 and 58,413.48

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Solution

The fourth proportional to 100,621.86, 150,735.60 and 58,413.48 is: 87,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,621.86 : 150,735.60 = 58,413.48 : x
  2. Step 2: Convert to fraction form
    100,621.86/150,735.60 = 58,413.48/x
  3. Step 3: Cross multiply
    100,621.86x = 150,735.60 × 58,413.48
  4. Step 4: Simplify right side
    100,621.86x = 8,804,990,955.89
  5. Step 5: Solve for x
    x = 8,804,990,955.89/100,621.86
  6. Step 6: Final answer
    x = 87,505.75

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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.