Finding the Fourth Proportional to 117,220.94, 161,764.70 and 63,507.32
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Solution
The fourth proportional to 117,220.94, 161,764.70 and 63,507.32 is: 87,639.99
Step by Step Solution
- Step 1: Write the proportion equation
117,220.94 : 161,764.70 = 63,507.32 : x - Step 2: Convert to fraction form
117,220.94/161,764.70 = 63,507.32/x - Step 3: Cross multiply
117,220.94x = 161,764.70 × 63,507.32 - Step 4: Simplify right side
117,220.94x = 10,273,241,441.24 - Step 5: Solve for x
x = 10,273,241,441.24/117,220.94 - Step 6: Final answer
x = 87,639.99
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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.