Finding the Fourth Proportional to 135,891.06, 203,916.78 and 51,722.08
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Solution
The fourth proportional to 135,891.06, 203,916.78 and 51,722.08 is: 77,613.64
Step by Step Solution
- Step 1: Write the proportion equation
135,891.06 : 203,916.78 = 51,722.08 : x - Step 2: Convert to fraction form
135,891.06/203,916.78 = 51,722.08/x - Step 3: Cross multiply
135,891.06x = 203,916.78 × 51,722.08 - Step 4: Simplify right side
135,891.06x = 10,547,000,008.50 - Step 5: Solve for x
x = 10,547,000,008.50/135,891.06 - Step 6: Final answer
x = 77,613.64
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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.