Finding the Fourth Proportional to 106,687.04, 147,218.16 and 68,378.96
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Solution
The fourth proportional to 106,687.04, 147,218.16 and 68,378.96 is: 94,356.58
Step by Step Solution
- Step 1: Write the proportion equation
106,687.04 : 147,218.16 = 68,378.96 : x - Step 2: Convert to fraction form
106,687.04/147,218.16 = 68,378.96/x - Step 3: Cross multiply
106,687.04x = 147,218.16 × 68,378.96 - Step 4: Simplify right side
106,687.04x = 10,066,624,673.91 - Step 5: Solve for x
x = 10,066,624,673.91/106,687.04 - Step 6: Final answer
x = 94,356.58
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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.