Finding the Fourth Proportional to 117,355.74, 161,951.01 and 63,640.75
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Solution
The fourth proportional to 117,355.74, 161,951.01 and 63,640.75 is: 87,824.28
Step by Step Solution
- Step 1: Write the proportion equation
117,355.74 : 161,951.01 = 63,640.75 : x - Step 2: Convert to fraction form
117,355.74/161,951.01 = 63,640.75/x - Step 3: Cross multiply
117,355.74x = 161,951.01 × 63,640.75 - Step 4: Simplify right side
117,355.74x = 10,306,683,739.66 - Step 5: Solve for x
x = 10,306,683,739.66/117,355.74 - Step 6: Final answer
x = 87,824.28
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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.