Finding the Fourth Proportional to 145,719.27, 201,102.84 and 81,192.69
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Solution
The fourth proportional to 145,719.27, 201,102.84 and 81,192.69 is: 112,051.62
Step by Step Solution
- Step 1: Write the proportion equation
145,719.27 : 201,102.84 = 81,192.69 : x - Step 2: Convert to fraction form
145,719.27/201,102.84 = 81,192.69/x - Step 3: Cross multiply
145,719.27x = 201,102.84 × 81,192.69 - Step 4: Simplify right side
145,719.27x = 16,328,080,546.24 - Step 5: Solve for x
x = 16,328,080,546.24/145,719.27 - Step 6: Final answer
x = 112,051.62
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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.