Finding the Fourth Proportional to 135,369.07, 186,808.56 and 74,120.82
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Solution
The fourth proportional to 135,369.07, 186,808.56 and 74,120.82 is: 102,286.31
Step by Step Solution
- Step 1: Write the proportion equation
135,369.07 : 186,808.56 = 74,120.82 : x - Step 2: Convert to fraction form
135,369.07/186,808.56 = 74,120.82/x - Step 3: Cross multiply
135,369.07x = 186,808.56 × 74,120.82 - Step 4: Simplify right side
135,369.07x = 13,846,402,671.73 - Step 5: Solve for x
x = 13,846,402,671.73/135,369.07 - Step 6: Final answer
x = 102,286.31
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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.