Finding the Fourth Proportional to 149,824.98, 206,756.36 and 81,841.14
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Solution
The fourth proportional to 149,824.98, 206,756.36 and 81,841.14 is: 112,939.62
Step by Step Solution
- Step 1: Write the proportion equation
149,824.98 : 206,756.36 = 81,841.14 : x - Step 2: Convert to fraction form
149,824.98/206,756.36 = 81,841.14/x - Step 3: Cross multiply
149,824.98x = 206,756.36 × 81,841.14 - Step 4: Simplify right side
149,824.98x = 16,921,176,204.65 - Step 5: Solve for x
x = 16,921,176,204.65/149,824.98 - Step 6: Final answer
x = 112,939.62
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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.