Finding the Fourth Proportional to 150,638.97, 207,872.82 and 86,115.18
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Solution
The fourth proportional to 150,638.97, 207,872.82 and 86,115.18 is: 118,833.83
Step by Step Solution
- Step 1: Write the proportion equation
150,638.97 : 207,872.82 = 86,115.18 : x - Step 2: Convert to fraction form
150,638.97/207,872.82 = 86,115.18/x - Step 3: Cross multiply
150,638.97x = 207,872.82 × 86,115.18 - Step 4: Simplify right side
150,638.97x = 17,901,005,311.41 - Step 5: Solve for x
x = 17,901,005,311.41/150,638.97 - Step 6: Final answer
x = 118,833.83
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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.