Finding the Fourth Proportional to 117,293.28, 161,866.80 and 63,580.08
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Solution
The fourth proportional to 117,293.28, 161,866.80 and 63,580.08 is: 87,741.63
Step by Step Solution
- Step 1: Write the proportion equation
117,293.28 : 161,866.80 = 63,580.08 : x - Step 2: Convert to fraction form
117,293.28/161,866.80 = 63,580.08/x - Step 3: Cross multiply
117,293.28x = 161,866.80 × 63,580.08 - Step 4: Simplify right side
117,293.28x = 10,291,504,093.34 - Step 5: Solve for x
x = 10,291,504,093.34/117,293.28 - Step 6: Final answer
x = 87,741.63
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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.