Finding the Fourth Proportional to 121,282.06, 181,942.53 and 51,171.70
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Solution
The fourth proportional to 121,282.06, 181,942.53 and 51,171.70 is: 76,765.75
Step by Step Solution
- Step 1: Write the proportion equation
121,282.06 : 181,942.53 = 51,171.70 : x - Step 2: Convert to fraction form
121,282.06/181,942.53 = 51,171.70/x - Step 3: Cross multiply
121,282.06x = 181,942.53 × 51,171.70 - Step 4: Simplify right side
121,282.06x = 9,310,308,562.40 - Step 5: Solve for x
x = 9,310,308,562.40/121,282.06 - Step 6: Final answer
x = 76,765.75
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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.