Finding the Fourth Proportional to 186,997.68, 258,057.36 and 102,115.08
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Solution
The fourth proportional to 186,997.68, 258,057.36 and 102,115.08 is: 140,919.12
Step by Step Solution
- Step 1: Write the proportion equation
186,997.68 : 258,057.36 = 102,115.08 : x - Step 2: Convert to fraction form
186,997.68/258,057.36 = 102,115.08/x - Step 3: Cross multiply
186,997.68x = 258,057.36 × 102,115.08 - Step 4: Simplify right side
186,997.68x = 26,351,547,960.99 - Step 5: Solve for x
x = 26,351,547,960.99/186,997.68 - Step 6: Final answer
x = 140,919.12
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1.5x scale
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.