Finding the Fourth Proportional to 120,470.63, 166,253.11 and 66,750.62
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Solution
The fourth proportional to 120,470.63, 166,253.11 and 66,750.62 is: 92,117.87
Step by Step Solution
- Step 1: Write the proportion equation
120,470.63 : 166,253.11 = 66,750.62 : x - Step 2: Convert to fraction form
120,470.63/166,253.11 = 66,750.62/x - Step 3: Cross multiply
120,470.63x = 166,253.11 × 66,750.62 - Step 4: Simplify right side
120,470.63x = 11,097,497,171.29 - Step 5: Solve for x
x = 11,097,497,171.29/120,470.63 - Step 6: Final answer
x = 92,117.87
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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.