Finding the Fourth Proportional to 192,991.52, 289,295.68 and 91,611.84
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Solution
The fourth proportional to 192,991.52, 289,295.68 and 91,611.84 is: 137,326.81
Step by Step Solution
- Step 1: Write the proportion equation
192,991.52 : 289,295.68 = 91,611.84 : x - Step 2: Convert to fraction form
192,991.52/289,295.68 = 91,611.84/x - Step 3: Cross multiply
192,991.52x = 289,295.68 × 91,611.84 - Step 4: Simplify right side
192,991.52x = 26,502,909,548.85 - Step 5: Solve for x
x = 26,502,909,548.85/192,991.52 - Step 6: Final answer
x = 137,326.81
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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.