Finding the Fourth Proportional to 117,485.05, 161,719.62 and 101,403.38
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Solution
The fourth proportional to 117,485.05, 161,719.62 and 101,403.38 is: 139,583.00
Step by Step Solution
- Step 1: Write the proportion equation
117,485.05 : 161,719.62 = 101,403.38 : x - Step 2: Convert to fraction form
117,485.05/161,719.62 = 101,403.38/x - Step 3: Cross multiply
117,485.05x = 161,719.62 × 101,403.38 - Step 4: Simplify right side
117,485.05x = 16,398,916,080.32 - Step 5: Solve for x
x = 16,398,916,080.32/117,485.05 - Step 6: Final answer
x = 139,583.00
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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.