Finding the Fourth Proportional to 137,912.49, 206,864.58 and 38,078.76
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Solution
The fourth proportional to 137,912.49, 206,864.58 and 38,078.76 is: 57,116.99
Step by Step Solution
- Step 1: Write the proportion equation
137,912.49 : 206,864.58 = 38,078.76 : x - Step 2: Convert to fraction form
137,912.49/206,864.58 = 38,078.76/x - Step 3: Cross multiply
137,912.49x = 206,864.58 × 38,078.76 - Step 4: Simplify right side
137,912.49x = 7,877,146,694.32 - Step 5: Solve for x
x = 7,877,146,694.32/137,912.49 - Step 6: Final answer
x = 57,116.99
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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.