Finding the Fourth Proportional to 121,532.19, 167,714.11 and 67,816.63
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Solution
The fourth proportional to 121,532.19, 167,714.11 and 67,816.63 is: 93,586.78
Step by Step Solution
- Step 1: Write the proportion equation
121,532.19 : 167,714.11 = 67,816.63 : x - Step 2: Convert to fraction form
121,532.19/167,714.11 = 67,816.63/x - Step 3: Cross multiply
121,532.19x = 167,714.11 × 67,816.63 - Step 4: Simplify right side
121,532.19x = 11,373,805,743.65 - Step 5: Solve for x
x = 11,373,805,743.65/121,532.19 - Step 6: Final answer
x = 93,586.78
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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.