Finding the Fourth Proportional to 160,435.68, 221,331.72 and 96,738.09
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Solution
The fourth proportional to 160,435.68, 221,331.72 and 96,738.09 is: 133,456.65
Step by Step Solution
- Step 1: Write the proportion equation
160,435.68 : 221,331.72 = 96,738.09 : x - Step 2: Convert to fraction form
160,435.68/221,331.72 = 96,738.09/x - Step 3: Cross multiply
160,435.68x = 221,331.72 × 96,738.09 - Step 4: Simplify right side
160,435.68x = 21,411,207,434.22 - Step 5: Solve for x
x = 21,411,207,434.22/160,435.68 - Step 6: Final answer
x = 133,456.65
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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.