Finding the Fourth Proportional to 127,995.86, 191,986.62 and 39,249.12
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Solution
The fourth proportional to 127,995.86, 191,986.62 and 39,249.12 is: 58,871.49
Step by Step Solution
- Step 1: Write the proportion equation
127,995.86 : 191,986.62 = 39,249.12 : x - Step 2: Convert to fraction form
127,995.86/191,986.62 = 39,249.12/x - Step 3: Cross multiply
127,995.86x = 191,986.62 × 39,249.12 - Step 4: Simplify right side
127,995.86x = 7,535,306,593.13 - Step 5: Solve for x
x = 7,535,306,593.13/127,995.86 - Step 6: Final answer
x = 58,871.49
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1.5x scale
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.