Finding the Fourth Proportional to 81,635.70, 114,056.70 and 81,635.70
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Solution
The fourth proportional to 81,635.70, 114,056.70 and 81,635.70 is: 114,056.70
Step by Step Solution
- Step 1: Write the proportion equation
81,635.70 : 114,056.70 = 81,635.70 : x - Step 2: Convert to fraction form
81,635.70/114,056.70 = 81,635.70/x - Step 3: Cross multiply
81,635.70x = 114,056.70 × 81,635.70 - Step 4: Simplify right side
81,635.70x = 9,311,098,544.19 - Step 5: Solve for x
x = 9,311,098,544.19/81,635.70 - Step 6: Final answer
x = 114,056.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.