Finding the Fourth Proportional to 117,201.15, 161,737.56 and 63,486.14
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Solution
The fourth proportional to 117,201.15, 161,737.56 and 63,486.14 is: 87,610.85
Step by Step Solution
- Step 1: Write the proportion equation
117,201.15 : 161,737.56 = 63,486.14 : x - Step 2: Convert to fraction form
117,201.15/161,737.56 = 63,486.14/x - Step 3: Cross multiply
117,201.15x = 161,737.56 × 63,486.14 - Step 4: Simplify right side
117,201.15x = 10,268,092,568.73 - Step 5: Solve for x
x = 10,268,092,568.73/117,201.15 - Step 6: Final answer
x = 87,610.85
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1.5x scale
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.