Finding the Fourth Proportional to 117,327.08, 161,868.86 and 77,062.68
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Solution
The fourth proportional to 117,327.08, 161,868.86 and 77,062.68 is: 106,318.58
Step by Step Solution
- Step 1: Write the proportion equation
117,327.08 : 161,868.86 = 77,062.68 : x - Step 2: Convert to fraction form
117,327.08/161,868.86 = 77,062.68/x - Step 3: Cross multiply
117,327.08x = 161,868.86 × 77,062.68 - Step 4: Simplify right side
117,327.08x = 12,474,048,160.14 - Step 5: Solve for x
x = 12,474,048,160.14/117,327.08 - Step 6: Final answer
x = 106,318.58
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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.