Finding the Fourth Proportional to 151,553.12, 227,469.90 and 76,725.84
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Solution
The fourth proportional to 151,553.12, 227,469.90 and 76,725.84 is: 115,159.75
Step by Step Solution
- Step 1: Write the proportion equation
151,553.12 : 227,469.90 = 76,725.84 : x - Step 2: Convert to fraction form
151,553.12/227,469.90 = 76,725.84/x - Step 3: Cross multiply
151,553.12x = 227,469.90 × 76,725.84 - Step 4: Simplify right side
151,553.12x = 17,452,819,152.22 - Step 5: Solve for x
x = 17,452,819,152.22/151,553.12 - Step 6: Final answer
x = 115,159.75
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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.