Finding the Fourth Proportional to 128,673.36, 193,035.81 and 44,436.60
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Solution
The fourth proportional to 128,673.36, 193,035.81 and 44,436.60 is: 66,663.80
Step by Step Solution
- Step 1: Write the proportion equation
128,673.36 : 193,035.81 = 44,436.60 : x - Step 2: Convert to fraction form
128,673.36/193,035.81 = 44,436.60/x - Step 3: Cross multiply
128,673.36x = 193,035.81 × 44,436.60 - Step 4: Simplify right side
128,673.36x = 8,577,854,991.33 - Step 5: Solve for x
x = 8,577,854,991.33/128,673.36 - Step 6: Final answer
x = 66,663.80
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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.