Finding the Fourth Proportional to 121,028.49, 167,022.52 and 66,582.09
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Solution
The fourth proportional to 121,028.49, 167,022.52 and 66,582.09 is: 91,885.05
Step by Step Solution
- Step 1: Write the proportion equation
121,028.49 : 167,022.52 = 66,582.09 : x - Step 2: Convert to fraction form
121,028.49/167,022.52 = 66,582.09/x - Step 3: Cross multiply
121,028.49x = 167,022.52 × 66,582.09 - Step 4: Simplify right side
121,028.49x = 11,120,708,292.21 - Step 5: Solve for x
x = 11,120,708,292.21/121,028.49 - Step 6: Final answer
x = 91,885.05
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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.