Finding the Fourth Proportional to 129,972.80, 194,527.20 and 94,332.80
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Solution
The fourth proportional to 129,972.80, 194,527.20 and 94,332.80 is: 141,185.66
Step by Step Solution
- Step 1: Write the proportion equation
129,972.80 : 194,527.20 = 94,332.80 : x - Step 2: Convert to fraction form
129,972.80/194,527.20 = 94,332.80/x - Step 3: Cross multiply
129,972.80x = 194,527.20 × 94,332.80 - Step 4: Simplify right side
129,972.80x = 18,350,295,452.16 - Step 5: Solve for x
x = 18,350,295,452.16/129,972.80 - Step 6: Final answer
x = 141,185.66
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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.