Finding the Fourth Proportional to 189,183.74, 261,063.13 and 108,605.99
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Solution
The fourth proportional to 189,183.74, 261,063.13 and 108,605.99 is: 149,870.28
Step by Step Solution
- Step 1: Write the proportion equation
189,183.74 : 261,063.13 = 108,605.99 : x - Step 2: Convert to fraction form
189,183.74/261,063.13 = 108,605.99/x - Step 3: Cross multiply
189,183.74x = 261,063.13 × 108,605.99 - Step 4: Simplify right side
189,183.74x = 28,353,019,686.15 - Step 5: Solve for x
x = 28,353,019,686.15/189,183.74 - Step 6: Final answer
x = 149,870.28
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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.