Finding the Fourth Proportional to 126,855.84, 174,976.66 and 81,591.08
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Solution
The fourth proportional to 126,855.84, 174,976.66 and 81,591.08 is: 112,541.41
Step by Step Solution
- Step 1: Write the proportion equation
126,855.84 : 174,976.66 = 81,591.08 : x - Step 2: Convert to fraction form
126,855.84/174,976.66 = 81,591.08/x - Step 3: Cross multiply
126,855.84x = 174,976.66 × 81,591.08 - Step 4: Simplify right side
126,855.84x = 14,276,534,664.19 - Step 5: Solve for x
x = 14,276,534,664.19/126,855.84 - Step 6: Final answer
x = 112,541.41
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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.