Finding the Fourth Proportional to 127,991.70, 191,995.04 and 39,246.08
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Solution
The fourth proportional to 127,991.70, 191,995.04 and 39,246.08 is: 58,871.42
Step by Step Solution
- Step 1: Write the proportion equation
127,991.70 : 191,995.04 = 39,246.08 : x - Step 2: Convert to fraction form
127,991.70/191,995.04 = 39,246.08/x - Step 3: Cross multiply
127,991.70x = 191,995.04 × 39,246.08 - Step 4: Simplify right side
127,991.70x = 7,535,052,699.44 - Step 5: Solve for x
x = 7,535,052,699.44/127,991.70 - Step 6: Final answer
x = 58,871.42
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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.