Finding the Fourth Proportional to 147,397.36, 203,413.80 and 83,745.94
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Solution
The fourth proportional to 147,397.36, 203,413.80 and 83,745.94 is: 115,572.49
Step by Step Solution
- Step 1: Write the proportion equation
147,397.36 : 203,413.80 = 83,745.94 : x - Step 2: Convert to fraction form
147,397.36/203,413.80 = 83,745.94/x - Step 3: Cross multiply
147,397.36x = 203,413.80 × 83,745.94 - Step 4: Simplify right side
147,397.36x = 17,035,079,889.97 - Step 5: Solve for x
x = 17,035,079,889.97/147,397.36 - Step 6: Final answer
x = 115,572.49
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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.