Finding the Fourth Proportional to 99,186.36, 136,816.74 and 58,872.84
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Solution
The fourth proportional to 99,186.36, 136,816.74 and 58,872.84 is: 81,208.65
Step by Step Solution
- Step 1: Write the proportion equation
99,186.36 : 136,816.74 = 58,872.84 : x - Step 2: Convert to fraction form
99,186.36/136,816.74 = 58,872.84/x - Step 3: Cross multiply
99,186.36x = 136,816.74 × 58,872.84 - Step 4: Simplify right side
99,186.36x = 8,054,790,043.34 - Step 5: Solve for x
x = 8,054,790,043.34/99,186.36 - Step 6: Final answer
x = 81,208.65
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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.