Finding the Fourth Proportional to 121,449.12, 167,629.84 and 82,750.96
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Solution
The fourth proportional to 121,449.12, 167,629.84 and 82,750.96 is: 114,216.80
Step by Step Solution
- Step 1: Write the proportion equation
121,449.12 : 167,629.84 = 82,750.96 : x - Step 2: Convert to fraction form
121,449.12/167,629.84 = 82,750.96/x - Step 3: Cross multiply
121,449.12x = 167,629.84 × 82,750.96 - Step 4: Simplify right side
121,449.12x = 13,871,530,184.65 - Step 5: Solve for x
x = 13,871,530,184.65/121,449.12 - Step 6: Final answer
x = 114,216.80
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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.