Finding the Fourth Proportional to 136,519.22, 204,827.45 and 69,990.68
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Solution
The fourth proportional to 136,519.22, 204,827.45 and 69,990.68 is: 105,010.94
Step by Step Solution
- Step 1: Write the proportion equation
136,519.22 : 204,827.45 = 69,990.68 : x - Step 2: Convert to fraction form
136,519.22/204,827.45 = 69,990.68/x - Step 3: Cross multiply
136,519.22x = 204,827.45 × 69,990.68 - Step 4: Simplify right side
136,519.22x = 14,336,011,134.08 - Step 5: Solve for x
x = 14,336,011,134.08/136,519.22 - Step 6: Final answer
x = 105,010.94
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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.