Finding the Fourth Proportional to 121,203.72, 182,534.90 and 107,338.14
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Solution
The fourth proportional to 121,203.72, 182,534.90 and 107,338.14 is: 161,653.09
Step by Step Solution
- Step 1: Write the proportion equation
121,203.72 : 182,534.90 = 107,338.14 : x - Step 2: Convert to fraction form
121,203.72/182,534.90 = 107,338.14/x - Step 3: Cross multiply
121,203.72x = 182,534.90 × 107,338.14 - Step 4: Simplify right side
121,203.72x = 19,592,956,114.40 - Step 5: Solve for x
x = 19,592,956,114.40/121,203.72 - Step 6: Final answer
x = 161,653.09
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.