Finding the Fourth Proportional to 84,821.40, 127,232.10 and 84,043.80
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Solution
The fourth proportional to 84,821.40, 127,232.10 and 84,043.80 is: 126,065.70
Step by Step Solution
- Step 1: Write the proportion equation
84,821.40 : 127,232.10 = 84,043.80 : x - Step 2: Convert to fraction form
84,821.40/127,232.10 = 84,043.80/x - Step 3: Cross multiply
84,821.40x = 127,232.10 × 84,043.80 - Step 4: Simplify right side
84,821.40x = 10,693,069,165.98 - Step 5: Solve for x
x = 10,693,069,165.98/84,821.40 - Step 6: Final answer
x = 126,065.70
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1.5x scale
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.