Finding the Fourth Proportional to 126,839.62, 190,121.87 and 63,507.01
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Solution
The fourth proportional to 126,839.62, 190,121.87 and 63,507.01 is: 95,191.64
Step by Step Solution
- Step 1: Write the proportion equation
126,839.62 : 190,121.87 = 63,507.01 : x - Step 2: Convert to fraction form
126,839.62/190,121.87 = 63,507.01/x - Step 3: Cross multiply
126,839.62x = 190,121.87 × 63,507.01 - Step 4: Simplify right side
126,839.62x = 12,074,071,499.31 - Step 5: Solve for x
x = 12,074,071,499.31/126,839.62 - Step 6: Final answer
x = 95,191.64
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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.