Finding the Fourth Proportional to 91,272.08, 136,596.60 and 76,497.68
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Solution
The fourth proportional to 91,272.08, 136,596.60 and 76,497.68 is: 114,485.43
Step by Step Solution
- Step 1: Write the proportion equation
91,272.08 : 136,596.60 = 76,497.68 : x - Step 2: Convert to fraction form
91,272.08/136,596.60 = 76,497.68/x - Step 3: Cross multiply
91,272.08x = 136,596.60 × 76,497.68 - Step 4: Simplify right side
91,272.08x = 10,449,322,995.89 - Step 5: Solve for x
x = 10,449,322,995.89/91,272.08 - Step 6: Final answer
x = 114,485.43
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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.