Finding the Fourth Proportional to 129,958.44, 179,343.36 and 76,244.51
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Solution
The fourth proportional to 129,958.44, 179,343.36 and 76,244.51 is: 105,217.84
Step by Step Solution
- Step 1: Write the proportion equation
129,958.44 : 179,343.36 = 76,244.51 : x - Step 2: Convert to fraction form
129,958.44/179,343.36 = 76,244.51/x - Step 3: Cross multiply
129,958.44x = 179,343.36 × 76,244.51 - Step 4: Simplify right side
129,958.44x = 13,673,945,708.24 - Step 5: Solve for x
x = 13,673,945,708.24/129,958.44 - Step 6: Final answer
x = 105,217.84
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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.