Finding the Fourth Proportional to 117,020.54, 161,487.68 and 63,305.40
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Solution
The fourth proportional to 117,020.54, 161,487.68 and 63,305.40 is: 87,361.09
Step by Step Solution
- Step 1: Write the proportion equation
117,020.54 : 161,487.68 = 63,305.40 : x - Step 2: Convert to fraction form
117,020.54/161,487.68 = 63,305.40/x - Step 3: Cross multiply
117,020.54x = 161,487.68 × 63,305.40 - Step 4: Simplify right side
117,020.54x = 10,223,042,177.47 - Step 5: Solve for x
x = 10,223,042,177.47/117,020.54 - Step 6: Final answer
x = 87,361.09
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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.