Finding the Fourth Proportional to 186,628.20, 279,942.30 and 93,121.80
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Solution
The fourth proportional to 186,628.20, 279,942.30 and 93,121.80 is: 139,682.70
Step by Step Solution
- Step 1: Write the proportion equation
186,628.20 : 279,942.30 = 93,121.80 : x - Step 2: Convert to fraction form
186,628.20/279,942.30 = 93,121.80/x - Step 3: Cross multiply
186,628.20x = 279,942.30 × 93,121.80 - Step 4: Simplify right side
186,628.20x = 26,068,730,872.14 - Step 5: Solve for x
x = 26,068,730,872.14/186,628.20 - Step 6: Final answer
x = 139,682.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.