Finding the Fourth Proportional to 97,881.20, 146,821.80 and 68,356.70
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Solution
The fourth proportional to 97,881.20, 146,821.80 and 68,356.70 is: 102,535.05
Step by Step Solution
- Step 1: Write the proportion equation
97,881.20 : 146,821.80 = 68,356.70 : x - Step 2: Convert to fraction form
97,881.20/146,821.80 = 68,356.70/x - Step 3: Cross multiply
97,881.20x = 146,821.80 × 68,356.70 - Step 4: Simplify right side
97,881.20x = 10,036,253,736.06 - Step 5: Solve for x
x = 10,036,253,736.06/97,881.20 - Step 6: Final answer
x = 102,535.05
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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.