Finding the Fourth Proportional to 107,586.05, 148,366.84 and 68,836.13
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Solution
The fourth proportional to 107,586.05, 148,366.84 and 68,836.13 is: 94,928.65
Step by Step Solution
- Step 1: Write the proportion equation
107,586.05 : 148,366.84 = 68,836.13 : x - Step 2: Convert to fraction form
107,586.05/148,366.84 = 68,836.13/x - Step 3: Cross multiply
107,586.05x = 148,366.84 × 68,836.13 - Step 4: Simplify right side
107,586.05x = 10,212,997,999.91 - Step 5: Solve for x
x = 10,212,997,999.91/107,586.05 - Step 6: Final answer
x = 94,928.65
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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.