Finding the Fourth Proportional to 120,365.06, 180,413.12 and 106,358.54
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Solution
The fourth proportional to 120,365.06, 180,413.12 and 106,358.54 is: 159,418.99
Step by Step Solution
- Step 1: Write the proportion equation
120,365.06 : 180,413.12 = 106,358.54 : x - Step 2: Convert to fraction form
120,365.06/180,413.12 = 106,358.54/x - Step 3: Cross multiply
120,365.06x = 180,413.12 × 106,358.54 - Step 4: Simplify right side
120,365.06x = 19,188,476,040.04 - Step 5: Solve for x
x = 19,188,476,040.04/120,365.06 - Step 6: Final answer
x = 159,418.99
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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.