Finding the Fourth Proportional to 112,171.24, 154,481.34 and 109,721.80
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Solution
The fourth proportional to 112,171.24, 154,481.34 and 109,721.80 is: 151,107.99
Step by Step Solution
- Step 1: Write the proportion equation
112,171.24 : 154,481.34 = 109,721.80 : x - Step 2: Convert to fraction form
112,171.24/154,481.34 = 109,721.80/x - Step 3: Cross multiply
112,171.24x = 154,481.34 × 109,721.80 - Step 4: Simplify right side
112,171.24x = 16,949,970,691.21 - Step 5: Solve for x
x = 16,949,970,691.21/112,171.24 - Step 6: Final answer
x = 151,107.99
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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.