Finding the Fourth Proportional to 135,327.08, 186,751.77 and 74,901.92
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Solution
The fourth proportional to 135,327.08, 186,751.77 and 74,901.92 is: 103,364.87
Step by Step Solution
- Step 1: Write the proportion equation
135,327.08 : 186,751.77 = 74,901.92 : x - Step 2: Convert to fraction form
135,327.08/186,751.77 = 74,901.92/x - Step 3: Cross multiply
135,327.08x = 186,751.77 × 74,901.92 - Step 4: Simplify right side
135,327.08x = 13,988,066,136.40 - Step 5: Solve for x
x = 13,988,066,136.40/135,327.08 - Step 6: Final answer
x = 103,364.87
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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.