Finding the Fourth Proportional to 110,936.70, 166,405.05 and 91,253.70
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Solution
The fourth proportional to 110,936.70, 166,405.05 and 91,253.70 is: 136,880.55
Step by Step Solution
- Step 1: Write the proportion equation
110,936.70 : 166,405.05 = 91,253.70 : x - Step 2: Convert to fraction form
110,936.70/166,405.05 = 91,253.70/x - Step 3: Cross multiply
110,936.70x = 166,405.05 × 91,253.70 - Step 4: Simplify right side
110,936.70x = 15,185,076,511.19 - Step 5: Solve for x
x = 15,185,076,511.19/110,936.70 - Step 6: Final answer
x = 136,880.55
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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.