Finding the Fourth Proportional to 129,872.60, 194,808.90 and 124,623.80
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Solution
The fourth proportional to 129,872.60, 194,808.90 and 124,623.80 is: 186,935.70
Step by Step Solution
- Step 1: Write the proportion equation
129,872.60 : 194,808.90 = 124,623.80 : x - Step 2: Convert to fraction form
129,872.60/194,808.90 = 124,623.80/x - Step 3: Cross multiply
129,872.60x = 194,808.90 × 124,623.80 - Step 4: Simplify right side
129,872.60x = 24,277,825,391.82 - Step 5: Solve for x
x = 24,277,825,391.82/129,872.60 - Step 6: Final answer
x = 186,935.70
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1.5x scale
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.