Finding the Fourth Proportional to 149,943.12, 206,934.68 and 82,888.08
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Solution
The fourth proportional to 149,943.12, 206,934.68 and 82,888.08 is: 114,392.83
Step by Step Solution
- Step 1: Write the proportion equation
149,943.12 : 206,934.68 = 82,888.08 : x - Step 2: Convert to fraction form
149,943.12/206,934.68 = 82,888.08/x - Step 3: Cross multiply
149,943.12x = 206,934.68 × 82,888.08 - Step 4: Simplify right side
149,943.12x = 17,152,418,310.61 - Step 5: Solve for x
x = 17,152,418,310.61/149,943.12 - Step 6: Final answer
x = 114,392.83
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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.