Finding the Fourth Proportional to 186,663.42, 257,589.99 and 106,099.74
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Solution
The fourth proportional to 186,663.42, 257,589.99 and 106,099.74 is: 146,414.50
Step by Step Solution
- Step 1: Write the proportion equation
186,663.42 : 257,589.99 = 106,099.74 : x - Step 2: Convert to fraction form
186,663.42/257,589.99 = 106,099.74/x - Step 3: Cross multiply
186,663.42x = 257,589.99 × 106,099.74 - Step 4: Simplify right side
186,663.42x = 27,330,230,965.60 - Step 5: Solve for x
x = 27,330,230,965.60/186,663.42 - Step 6: Final answer
x = 146,414.50
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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.