Finding the Fourth Proportional to 186,821.96, 257,819.99 and 106,261.08
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Solution
The fourth proportional to 186,821.96, 257,819.99 and 106,261.08 is: 146,643.52
Step by Step Solution
- Step 1: Write the proportion equation
186,821.96 : 257,819.99 = 106,261.08 : x - Step 2: Convert to fraction form
186,821.96/257,819.99 = 106,261.08/x - Step 3: Cross multiply
186,821.96x = 257,819.99 × 106,261.08 - Step 4: Simplify right side
186,821.96x = 27,396,230,582.99 - Step 5: Solve for x
x = 27,396,230,582.99/186,821.96 - Step 6: Final answer
x = 146,643.52
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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.