Finding the Fourth Proportional to 163,653.18, 225,872.45 and 102,427.80
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Solution
The fourth proportional to 163,653.18, 225,872.45 and 102,427.80 is: 141,369.80
Step by Step Solution
- Step 1: Write the proportion equation
163,653.18 : 225,872.45 = 102,427.80 : x - Step 2: Convert to fraction form
163,653.18/225,872.45 = 102,427.80/x - Step 3: Cross multiply
163,653.18x = 225,872.45 × 102,427.80 - Step 4: Simplify right side
163,653.18x = 23,135,618,134.11 - Step 5: Solve for x
x = 23,135,618,134.11/163,653.18 - Step 6: Final answer
x = 141,369.80
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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.