Finding the Fourth Proportional to 145,718.66, 201,102.14 and 81,193.26
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Solution
The fourth proportional to 145,718.66, 201,102.14 and 81,193.26 is: 112,052.49
Step by Step Solution
- Step 1: Write the proportion equation
145,718.66 : 201,102.14 = 81,193.26 : x - Step 2: Convert to fraction form
145,718.66/201,102.14 = 81,193.26/x - Step 3: Cross multiply
145,718.66x = 201,102.14 × 81,193.26 - Step 4: Simplify right side
145,718.66x = 16,328,138,339.58 - Step 5: Solve for x
x = 16,328,138,339.58/145,718.66 - Step 6: Final answer
x = 112,052.49
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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.