Finding the Fourth Proportional to 136,047.42, 187,565.09 and 111,757.14
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Solution
The fourth proportional to 136,047.42, 187,565.09 and 111,757.14 is: 154,076.70
Step by Step Solution
- Step 1: Write the proportion equation
136,047.42 : 187,565.09 = 111,757.14 : x - Step 2: Convert to fraction form
136,047.42/187,565.09 = 111,757.14/x - Step 3: Cross multiply
136,047.42x = 187,565.09 × 111,757.14 - Step 4: Simplify right side
136,047.42x = 20,961,737,463.46 - Step 5: Solve for x
x = 20,961,737,463.46/136,047.42 - Step 6: Final answer
x = 154,076.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.