Finding the Fourth Proportional to 136,575.64, 188,486.76 and 82,874.26
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Solution
The fourth proportional to 136,575.64, 188,486.76 and 82,874.26 is: 114,373.99
Step by Step Solution
- Step 1: Write the proportion equation
136,575.64 : 188,486.76 = 82,874.26 : x - Step 2: Convert to fraction form
136,575.64/188,486.76 = 82,874.26/x - Step 3: Cross multiply
136,575.64x = 188,486.76 × 82,874.26 - Step 4: Simplify right side
136,575.64x = 15,620,700,754.80 - Step 5: Solve for x
x = 15,620,700,754.80/136,575.64 - Step 6: Final answer
x = 114,373.99
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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.