Finding the Fourth Proportional to 136,806.76, 205,538.94 and 129,253.96
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Solution
The fourth proportional to 136,806.76, 205,538.94 and 129,253.96 is: 194,191.59
Step by Step Solution
- Step 1: Write the proportion equation
136,806.76 : 205,538.94 = 129,253.96 : x - Step 2: Convert to fraction form
136,806.76/205,538.94 = 129,253.96/x - Step 3: Cross multiply
136,806.76x = 205,538.94 × 129,253.96 - Step 4: Simplify right side
136,806.76x = 26,566,721,929.20 - Step 5: Solve for x
x = 26,566,721,929.20/136,806.76 - Step 6: Final answer
x = 194,191.59
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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.