Finding the Fourth Proportional to 95,683.84, 131,964.96 and 84,936.64
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Solution
The fourth proportional to 95,683.84, 131,964.96 and 84,936.64 is: 117,142.67
Step by Step Solution
- Step 1: Write the proportion equation
95,683.84 : 131,964.96 = 84,936.64 : x - Step 2: Convert to fraction form
95,683.84/131,964.96 = 84,936.64/x - Step 3: Cross multiply
95,683.84x = 131,964.96 × 84,936.64 - Step 4: Simplify right side
95,683.84x = 11,208,660,300.13 - Step 5: Solve for x
x = 11,208,660,300.13/95,683.84 - Step 6: Final answer
x = 117,142.67
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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.