Finding the Fourth Proportional to 143,825.76, 198,838.26 and 107,953.44
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Solution
The fourth proportional to 143,825.76, 198,838.26 and 107,953.44 is: 149,244.99
Step by Step Solution
- Step 1: Write the proportion equation
143,825.76 : 198,838.26 = 107,953.44 : x - Step 2: Convert to fraction form
143,825.76/198,838.26 = 107,953.44/x - Step 3: Cross multiply
143,825.76x = 198,838.26 × 107,953.44 - Step 4: Simplify right side
143,825.76x = 21,465,274,170.61 - Step 5: Solve for x
x = 21,465,274,170.61/143,825.76 - Step 6: Final answer
x = 149,244.99
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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.