Finding the Fourth Proportional to 115,562.96, 159,322.68 and 91,768.40
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Solution
The fourth proportional to 115,562.96, 159,322.68 and 91,768.40 is: 126,517.94
Step by Step Solution
- Step 1: Write the proportion equation
115,562.96 : 159,322.68 = 91,768.40 : x - Step 2: Convert to fraction form
115,562.96/159,322.68 = 91,768.40/x - Step 3: Cross multiply
115,562.96x = 159,322.68 × 91,768.40 - Step 4: Simplify right side
115,562.96x = 14,620,787,427.31 - Step 5: Solve for x
x = 14,620,787,427.31/115,562.96 - Step 6: Final answer
x = 126,517.94
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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.