Finding the Fourth Proportional to 186,711.99, 257,618.25 and 106,133.19
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Solution
The fourth proportional to 186,711.99, 257,618.25 and 106,133.19 is: 146,438.62
Step by Step Solution
- Step 1: Write the proportion equation
186,711.99 : 257,618.25 = 106,133.19 : x - Step 2: Convert to fraction form
186,711.99/257,618.25 = 106,133.19/x - Step 3: Cross multiply
186,711.99x = 257,618.25 × 106,133.19 - Step 4: Simplify right side
186,711.99x = 27,341,846,674.72 - Step 5: Solve for x
x = 27,341,846,674.72/186,711.99 - Step 6: Final answer
x = 146,438.62
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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.