Finding the Fourth Proportional to 135,929.76, 202,516.68 and 129,237.84
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Solution
The fourth proportional to 135,929.76, 202,516.68 and 129,237.84 is: 192,546.64
Step by Step Solution
- Step 1: Write the proportion equation
135,929.76 : 202,516.68 = 129,237.84 : x - Step 2: Convert to fraction form
135,929.76/202,516.68 = 129,237.84/x - Step 3: Cross multiply
135,929.76x = 202,516.68 × 129,237.84 - Step 4: Simplify right side
135,929.76x = 26,172,818,287.17 - Step 5: Solve for x
x = 26,172,818,287.17/135,929.76 - Step 6: Final answer
x = 192,546.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.