Finding the Fourth Proportional to 163,540.19, 225,691.85 and 91,919.99
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Solution
The fourth proportional to 163,540.19, 225,691.85 and 91,919.99 is: 126,853.18
Step by Step Solution
- Step 1: Write the proportion equation
163,540.19 : 225,691.85 = 91,919.99 : x - Step 2: Convert to fraction form
163,540.19/225,691.85 = 91,919.99/x - Step 3: Cross multiply
163,540.19x = 225,691.85 × 91,919.99 - Step 4: Simplify right side
163,540.19x = 20,745,592,595.08 - Step 5: Solve for x
x = 20,745,592,595.08/163,540.19 - Step 6: Final answer
x = 126,853.18
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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.