Finding the Fourth Proportional to 129,617.44, 194,207.28 and 79,593.28
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Solution
The fourth proportional to 129,617.44, 194,207.28 and 79,593.28 is: 119,255.51
Step by Step Solution
- Step 1: Write the proportion equation
129,617.44 : 194,207.28 = 79,593.28 : x - Step 2: Convert to fraction form
129,617.44/194,207.28 = 79,593.28/x - Step 3: Cross multiply
129,617.44x = 194,207.28 × 79,593.28 - Step 4: Simplify right side
129,617.44x = 15,457,594,415.08 - Step 5: Solve for x
x = 15,457,594,415.08/129,617.44 - Step 6: Final answer
x = 119,255.51
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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.