Finding the Fourth Proportional to 121,183.48, 181,648.86 and 71,222.68
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Solution
The fourth proportional to 121,183.48, 181,648.86 and 71,222.68 is: 106,759.75
Step by Step Solution
- Step 1: Write the proportion equation
121,183.48 : 181,648.86 = 71,222.68 : x - Step 2: Convert to fraction form
121,183.48/181,648.86 = 71,222.68/x - Step 3: Cross multiply
121,183.48x = 181,648.86 × 71,222.68 - Step 4: Simplify right side
121,183.48x = 12,937,518,628.14 - Step 5: Solve for x
x = 12,937,518,628.14/121,183.48 - Step 6: Final answer
x = 106,759.75
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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.