Finding the Fourth Proportional to 112,021.68, 154,582.69 and 66,702.99
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Solution
The fourth proportional to 112,021.68, 154,582.69 and 66,702.99 is: 92,045.82
Step by Step Solution
- Step 1: Write the proportion equation
112,021.68 : 154,582.69 = 66,702.99 : x - Step 2: Convert to fraction form
112,021.68/154,582.69 = 66,702.99/x - Step 3: Cross multiply
112,021.68x = 154,582.69 × 66,702.99 - Step 4: Simplify right side
112,021.68x = 10,311,127,625.24 - Step 5: Solve for x
x = 10,311,127,625.24/112,021.68 - Step 6: Final answer
x = 92,045.82
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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.