Finding the Fourth Proportional to 126,701.11, 174,797.80 and 81,372.80
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Solution
The fourth proportional to 126,701.11, 174,797.80 and 81,372.80 is: 112,262.52
Step by Step Solution
- Step 1: Write the proportion equation
126,701.11 : 174,797.80 = 81,372.80 : x - Step 2: Convert to fraction form
126,701.11/174,797.80 = 81,372.80/x - Step 3: Cross multiply
126,701.11x = 174,797.80 × 81,372.80 - Step 4: Simplify right side
126,701.11x = 14,223,786,653.40 - Step 5: Solve for x
x = 14,223,786,653.40/126,701.11 - Step 6: Final answer
x = 112,262.52
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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.