Finding the Fourth Proportional to 129,946.20, 194,919.30 and 94,516.80
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Solution
The fourth proportional to 129,946.20, 194,919.30 and 94,516.80 is: 141,775.20
Step by Step Solution
- Step 1: Write the proportion equation
129,946.20 : 194,919.30 = 94,516.80 : x - Step 2: Convert to fraction form
129,946.20/194,919.30 = 94,516.80/x - Step 3: Cross multiply
129,946.20x = 194,919.30 × 94,516.80 - Step 4: Simplify right side
129,946.20x = 18,423,148,494.24 - Step 5: Solve for x
x = 18,423,148,494.24/129,946.20 - Step 6: Final answer
x = 141,775.20
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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.