Finding the Fourth Proportional to 186,512.16, 257,378.74 and 105,939.44
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Solution
The fourth proportional to 186,512.16, 257,378.74 and 105,939.44 is: 146,191.85
Step by Step Solution
- Step 1: Write the proportion equation
186,512.16 : 257,378.74 = 105,939.44 : x - Step 2: Convert to fraction form
186,512.16/257,378.74 = 105,939.44/x - Step 3: Cross multiply
186,512.16x = 257,378.74 × 105,939.44 - Step 4: Simplify right side
186,512.16x = 27,266,558,031.76 - Step 5: Solve for x
x = 27,266,558,031.76/186,512.16 - Step 6: Final answer
x = 146,191.85
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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.