Finding the Fourth Proportional to 135,115.66, 186,433.95 and 84,791.98
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Solution
The fourth proportional to 135,115.66, 186,433.95 and 84,791.98 is: 116,996.83
Step by Step Solution
- Step 1: Write the proportion equation
135,115.66 : 186,433.95 = 84,791.98 : x - Step 2: Convert to fraction form
135,115.66/186,433.95 = 84,791.98/x - Step 3: Cross multiply
135,115.66x = 186,433.95 × 84,791.98 - Step 4: Simplify right side
135,115.66x = 15,808,103,759.72 - Step 5: Solve for x
x = 15,808,103,759.72/135,115.66 - Step 6: Final answer
x = 116,996.83
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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.