Finding the Fourth Proportional to 113,912.68, 157,201.86 and 63,611.68
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Solution
The fourth proportional to 113,912.68, 157,201.86 and 63,611.68 is: 87,785.44
Step by Step Solution
- Step 1: Write the proportion equation
113,912.68 : 157,201.86 = 63,611.68 : x - Step 2: Convert to fraction form
113,912.68/157,201.86 = 63,611.68/x - Step 3: Cross multiply
113,912.68x = 157,201.86 × 63,611.68 - Step 4: Simplify right side
113,912.68x = 9,999,874,413.72 - Step 5: Solve for x
x = 9,999,874,413.72/113,912.68 - Step 6: Final answer
x = 87,785.44
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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.