Finding the Fourth Proportional to 129,188.04, 193,529.33 and 84,678.94
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Solution
The fourth proportional to 129,188.04, 193,529.33 and 84,678.94 is: 126,852.75
Step by Step Solution
- Step 1: Write the proportion equation
129,188.04 : 193,529.33 = 84,678.94 : x - Step 2: Convert to fraction form
129,188.04/193,529.33 = 84,678.94/x - Step 3: Cross multiply
129,188.04x = 193,529.33 × 84,678.94 - Step 4: Simplify right side
129,188.04x = 16,387,858,523.31 - Step 5: Solve for x
x = 16,387,858,523.31/129,188.04 - Step 6: Final answer
x = 126,852.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.