Finding the Fourth Proportional to 106,141.87, 146,414.95 and 66,328.75
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Solution
The fourth proportional to 106,141.87, 146,414.95 and 66,328.75 is: 91,495.66
Step by Step Solution
- Step 1: Write the proportion equation
106,141.87 : 146,414.95 = 66,328.75 : x - Step 2: Convert to fraction form
106,141.87/146,414.95 = 66,328.75/x - Step 3: Cross multiply
106,141.87x = 146,414.95 × 66,328.75 - Step 4: Simplify right side
106,141.87x = 9,711,520,614.81 - Step 5: Solve for x
x = 9,711,520,614.81/106,141.87 - Step 6: Final answer
x = 91,495.66
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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.