Finding the Fourth Proportional to 127,812.12, 176,393.84 and 76,841.44
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Solution
The fourth proportional to 127,812.12, 176,393.84 and 76,841.44 is: 106,049.07
Step by Step Solution
- Step 1: Write the proportion equation
127,812.12 : 176,393.84 = 76,841.44 : x - Step 2: Convert to fraction form
127,812.12/176,393.84 = 76,841.44/x - Step 3: Cross multiply
127,812.12x = 176,393.84 × 76,841.44 - Step 4: Simplify right side
127,812.12x = 13,554,356,672.73 - Step 5: Solve for x
x = 13,554,356,672.73/127,812.12 - Step 6: Final answer
x = 106,049.07
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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.