Finding the Fourth Proportional to 163,600.19, 225,774.78 and 91,979.99
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Solution
The fourth proportional to 163,600.19, 225,774.78 and 91,979.99 is: 126,936.05
Step by Step Solution
- Step 1: Write the proportion equation
163,600.19 : 225,774.78 = 91,979.99 : x - Step 2: Convert to fraction form
163,600.19/225,774.78 = 91,979.99/x - Step 3: Cross multiply
163,600.19x = 225,774.78 × 91,979.99 - Step 4: Simplify right side
163,600.19x = 20,766,762,006.65 - Step 5: Solve for x
x = 20,766,762,006.65/163,600.19 - Step 6: Final answer
x = 126,936.05
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1.5x scale
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.