Finding the Fourth Proportional to 106,615.44, 159,674.40 and 84,278.88
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Solution
The fourth proportional to 106,615.44, 159,674.40 and 84,278.88 is: 126,221.68
Step by Step Solution
- Step 1: Write the proportion equation
106,615.44 : 159,674.40 = 84,278.88 : x - Step 2: Convert to fraction form
106,615.44/159,674.40 = 84,278.88/x - Step 3: Cross multiply
106,615.44x = 159,674.40 × 84,278.88 - Step 4: Simplify right side
106,615.44x = 13,457,179,596.67 - Step 5: Solve for x
x = 13,457,179,596.67/106,615.44 - Step 6: Final answer
x = 126,221.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.