Finding the Fourth Proportional to 126,589.24, 174,534.37 and 81,187.12
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Solution
The fourth proportional to 126,589.24, 174,534.37 and 81,187.12 is: 111,936.39
Step by Step Solution
- Step 1: Write the proportion equation
126,589.24 : 174,534.37 = 81,187.12 : x - Step 2: Convert to fraction form
126,589.24/174,534.37 = 81,187.12/x - Step 3: Cross multiply
126,589.24x = 174,534.37 × 81,187.12 - Step 4: Simplify right side
126,589.24x = 14,169,942,841.31 - Step 5: Solve for x
x = 14,169,942,841.31/126,589.24 - Step 6: Final answer
x = 111,936.39
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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.