Finding the Fourth Proportional to 128,677.96, 192,969.50 and 44,416.68
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Solution
The fourth proportional to 128,677.96, 192,969.50 and 44,416.68 is: 66,608.64
Step by Step Solution
- Step 1: Write the proportion equation
128,677.96 : 192,969.50 = 44,416.68 : x - Step 2: Convert to fraction form
128,677.96/192,969.50 = 44,416.68/x - Step 3: Cross multiply
128,677.96x = 192,969.50 × 44,416.68 - Step 4: Simplify right side
128,677.96x = 8,571,064,531.26 - Step 5: Solve for x
x = 8,571,064,531.26/128,677.96 - Step 6: Final answer
x = 66,608.64
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1.5x scale
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.