Finding the Fourth Proportional to 163,843.18, 226,140.47 and 107,221.75
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Solution
The fourth proportional to 163,843.18, 226,140.47 and 107,221.75 is: 147,990.15
Step by Step Solution
- Step 1: Write the proportion equation
163,843.18 : 226,140.47 = 107,221.75 : x - Step 2: Convert to fraction form
163,843.18/226,140.47 = 107,221.75/x - Step 3: Cross multiply
163,843.18x = 226,140.47 × 107,221.75 - Step 4: Simplify right side
163,843.18x = 24,247,176,939.22 - Step 5: Solve for x
x = 24,247,176,939.22/163,843.18 - Step 6: Final answer
x = 147,990.15
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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.