Finding the Fourth Proportional to 108,965.75, 163,458.02 and 30,079.99
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Solution
The fourth proportional to 108,965.75, 163,458.02 and 30,079.99 is: 45,122.57
Step by Step Solution
- Step 1: Write the proportion equation
108,965.75 : 163,458.02 = 30,079.99 : x - Step 2: Convert to fraction form
108,965.75/163,458.02 = 30,079.99/x - Step 3: Cross multiply
108,965.75x = 163,458.02 × 30,079.99 - Step 4: Simplify right side
108,965.75x = 4,916,815,273.57 - Step 5: Solve for x
x = 4,916,815,273.57/108,965.75 - Step 6: Final answer
x = 45,122.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.