Finding the Fourth Proportional to 163,622.21, 225,612.47 and 115,208.66
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Solution
The fourth proportional to 163,622.21, 225,612.47 and 115,208.66 is: 158,856.87
Step by Step Solution
- Step 1: Write the proportion equation
163,622.21 : 225,612.47 = 115,208.66 : x - Step 2: Convert to fraction form
163,622.21/225,612.47 = 115,208.66/x - Step 3: Cross multiply
163,622.21x = 225,612.47 × 115,208.66 - Step 4: Simplify right side
163,622.21x = 25,992,511,200.04 - Step 5: Solve for x
x = 25,992,511,200.04/163,622.21 - Step 6: Final answer
x = 158,856.87
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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.