Finding the Fourth Proportional to 135,307.80, 186,878.97 and 92,212.97
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Solution
The fourth proportional to 135,307.80, 186,878.97 and 92,212.97 is: 127,358.98
Step by Step Solution
- Step 1: Write the proportion equation
135,307.80 : 186,878.97 = 92,212.97 : x - Step 2: Convert to fraction form
135,307.80/186,878.97 = 92,212.97/x - Step 3: Cross multiply
135,307.80x = 186,878.97 × 92,212.97 - Step 4: Simplify right side
135,307.80x = 17,232,663,919.85 - Step 5: Solve for x
x = 17,232,663,919.85/135,307.80 - Step 6: Final answer
x = 127,358.98
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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.