Finding the Fourth Proportional to 145,716.94, 201,083.97 and 81,184.66
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Solution
The fourth proportional to 145,716.94, 201,083.97 and 81,184.66 is: 112,031.82
Step by Step Solution
- Step 1: Write the proportion equation
145,716.94 : 201,083.97 = 81,184.66 : x - Step 2: Convert to fraction form
145,716.94/201,083.97 = 81,184.66/x - Step 3: Cross multiply
145,716.94x = 201,083.97 × 81,184.66 - Step 4: Simplify right side
145,716.94x = 16,324,933,735.90 - Step 5: Solve for x
x = 16,324,933,735.90/145,716.94 - Step 6: Final answer
x = 112,031.82
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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.