Finding the Fourth Proportional to 106,680.99, 147,213.84 and 66,393.48
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Solution
The fourth proportional to 106,680.99, 147,213.84 and 66,393.48 is: 91,619.31
Step by Step Solution
- Step 1: Write the proportion equation
106,680.99 : 147,213.84 = 66,393.48 : x - Step 2: Convert to fraction form
106,680.99/147,213.84 = 66,393.48/x - Step 3: Cross multiply
106,680.99x = 147,213.84 × 66,393.48 - Step 4: Simplify right side
106,680.99x = 9,774,039,141.76 - Step 5: Solve for x
x = 9,774,039,141.76/106,680.99 - Step 6: Final answer
x = 91,619.31
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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.