Finding the Fourth Proportional to 128,365.16, 192,416.51 and 44,100.05
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Solution
The fourth proportional to 128,365.16, 192,416.51 and 44,100.05 is: 66,104.99
Step by Step Solution
- Step 1: Write the proportion equation
128,365.16 : 192,416.51 = 44,100.05 : x - Step 2: Convert to fraction form
128,365.16/192,416.51 = 44,100.05/x - Step 3: Cross multiply
128,365.16x = 192,416.51 × 44,100.05 - Step 4: Simplify right side
128,365.16x = 8,485,576,859.99 - Step 5: Solve for x
x = 8,485,576,859.99/128,365.16 - Step 6: Final answer
x = 66,104.99
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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.