Finding the Fourth Proportional to 127,863.84, 176,449.68 and 80,143.68
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Solution
The fourth proportional to 127,863.84, 176,449.68 and 80,143.68 is: 110,596.76
Step by Step Solution
- Step 1: Write the proportion equation
127,863.84 : 176,449.68 = 80,143.68 : x - Step 2: Convert to fraction form
127,863.84/176,449.68 = 80,143.68/x - Step 3: Cross multiply
127,863.84x = 176,449.68 × 80,143.68 - Step 4: Simplify right side
127,863.84x = 14,141,326,690.02 - Step 5: Solve for x
x = 14,141,326,690.02/127,863.84 - Step 6: Final answer
x = 110,596.76
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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.