Finding the Fourth Proportional to 112,910.22, 155,821.23 and 67,579.65
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Solution
The fourth proportional to 112,910.22, 155,821.23 and 67,579.65 is: 93,262.99
Step by Step Solution
- Step 1: Write the proportion equation
112,910.22 : 155,821.23 = 67,579.65 : x - Step 2: Convert to fraction form
112,910.22/155,821.23 = 67,579.65/x - Step 3: Cross multiply
112,910.22x = 155,821.23 × 67,579.65 - Step 4: Simplify right side
112,910.22x = 10,530,344,185.97 - Step 5: Solve for x
x = 10,530,344,185.97/112,910.22 - Step 6: Final answer
x = 93,262.99
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1.5x scale
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.