Finding the Fourth Proportional to 135,466.96, 186,951.12 and 81,751.12
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Solution
The fourth proportional to 135,466.96, 186,951.12 and 81,751.12 is: 112,820.60
Step by Step Solution
- Step 1: Write the proportion equation
135,466.96 : 186,951.12 = 81,751.12 : x - Step 2: Convert to fraction form
135,466.96/186,951.12 = 81,751.12/x - Step 3: Cross multiply
135,466.96x = 186,951.12 × 81,751.12 - Step 4: Simplify right side
135,466.96x = 15,283,463,445.25 - Step 5: Solve for x
x = 15,283,463,445.25/135,466.96 - Step 6: Final answer
x = 112,820.60
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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.