Finding the Fourth Proportional to 127,207.20, 190,832.40 and 68,026.80
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Solution
The fourth proportional to 127,207.20, 190,832.40 and 68,026.80 is: 102,051.75
Step by Step Solution
- Step 1: Write the proportion equation
127,207.20 : 190,832.40 = 68,026.80 : x - Step 2: Convert to fraction form
127,207.20/190,832.40 = 68,026.80/x - Step 3: Cross multiply
127,207.20x = 190,832.40 × 68,026.80 - Step 4: Simplify right side
127,207.20x = 12,981,717,508.32 - Step 5: Solve for x
x = 12,981,717,508.32/127,207.20 - Step 6: Final answer
x = 102,051.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.