Finding the Fourth Proportional to 129,827.70, 194,741.55 and 107,957.70
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Solution
The fourth proportional to 129,827.70, 194,741.55 and 107,957.70 is: 161,936.55
Step by Step Solution
- Step 1: Write the proportion equation
129,827.70 : 194,741.55 = 107,957.70 : x - Step 2: Convert to fraction form
129,827.70/194,741.55 = 107,957.70/x - Step 3: Cross multiply
129,827.70x = 194,741.55 × 107,957.70 - Step 4: Simplify right side
129,827.70x = 21,023,849,832.44 - Step 5: Solve for x
x = 21,023,849,832.44/129,827.70 - Step 6: Final answer
x = 161,936.55
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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.