Finding the Fourth Proportional to 186,821.56, 257,819.42 and 106,260.67
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Solution
The fourth proportional to 186,821.56, 257,819.42 and 106,260.67 is: 146,642.95
Step by Step Solution
- Step 1: Write the proportion equation
186,821.56 : 257,819.42 = 106,260.67 : x - Step 2: Convert to fraction form
186,821.56/257,819.42 = 106,260.67/x - Step 3: Cross multiply
186,821.56x = 257,819.42 × 106,260.67 - Step 4: Simplify right side
186,821.56x = 27,396,064,308.21 - Step 5: Solve for x
x = 27,396,064,308.21/186,821.56 - Step 6: Final answer
x = 146,642.95
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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.