Finding the Fourth Proportional to 135,652.40, 203,478.60 and 88,413.20
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Solution
The fourth proportional to 135,652.40, 203,478.60 and 88,413.20 is: 132,619.80
Step by Step Solution
- Step 1: Write the proportion equation
135,652.40 : 203,478.60 = 88,413.20 : x - Step 2: Convert to fraction form
135,652.40/203,478.60 = 88,413.20/x - Step 3: Cross multiply
135,652.40x = 203,478.60 × 88,413.20 - Step 4: Simplify right side
135,652.40x = 17,990,194,157.52 - Step 5: Solve for x
x = 17,990,194,157.52/135,652.40 - Step 6: Final answer
x = 132,619.80
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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.