Finding the Fourth Proportional to 136,768.91, 205,243.07 and 48,020.13
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Solution
The fourth proportional to 136,768.91, 205,243.07 and 48,020.13 is: 72,061.69
Step by Step Solution
- Step 1: Write the proportion equation
136,768.91 : 205,243.07 = 48,020.13 : x - Step 2: Convert to fraction form
136,768.91/205,243.07 = 48,020.13/x - Step 3: Cross multiply
136,768.91x = 205,243.07 × 48,020.13 - Step 4: Simplify right side
136,768.91x = 9,855,798,662.90 - Step 5: Solve for x
x = 9,855,798,662.90/136,768.91 - Step 6: Final answer
x = 72,061.69
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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.