Finding the Fourth Proportional to 127,186.65, 175,518.26 and 79,467.68
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Solution
The fourth proportional to 127,186.65, 175,518.26 and 79,467.68 is: 109,665.82
Step by Step Solution
- Step 1: Write the proportion equation
127,186.65 : 175,518.26 = 79,467.68 : x - Step 2: Convert to fraction form
127,186.65/175,518.26 = 79,467.68/x - Step 3: Cross multiply
127,186.65x = 175,518.26 × 79,467.68 - Step 4: Simplify right side
127,186.65x = 13,948,027,644.91 - Step 5: Solve for x
x = 13,948,027,644.91/127,186.65 - Step 6: Final answer
x = 109,665.82
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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.