Home / 145,413.44-200,670.32-81,751.36

Finding the Fourth Proportional to 145,413.44, 200,670.32 and 81,751.36

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Solution

The fourth proportional to 145,413.44, 200,670.32 and 81,751.36 is: 112,816.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,413.44 : 200,670.32 = 81,751.36 : x
  2. Step 2: Convert to fraction form
    145,413.44/200,670.32 = 81,751.36/x
  3. Step 3: Cross multiply
    145,413.44x = 200,670.32 × 81,751.36
  4. Step 4: Simplify right side
    145,413.44x = 16,405,071,571.64
  5. Step 5: Solve for x
    x = 16,405,071,571.64/145,413.44
  6. Step 6: Final answer
    x = 112,816.75

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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.