Finding the Fourth Proportional to 135,514.54, 186,994.74 and 75,069.91
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Solution
The fourth proportional to 135,514.54, 186,994.74 and 75,069.91 is: 103,587.99
Step by Step Solution
- Step 1: Write the proportion equation
135,514.54 : 186,994.74 = 75,069.91 : x - Step 2: Convert to fraction form
135,514.54/186,994.74 = 75,069.91/x - Step 3: Cross multiply
135,514.54x = 186,994.74 × 75,069.91 - Step 4: Simplify right side
135,514.54x = 14,037,678,302.27 - Step 5: Solve for x
x = 14,037,678,302.27/135,514.54 - Step 6: Final answer
x = 103,587.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.