Finding the Fourth Proportional to 149,494.62, 206,304.18 and 81,511.02
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Solution
The fourth proportional to 149,494.62, 206,304.18 and 81,511.02 is: 112,486.08
Step by Step Solution
- Step 1: Write the proportion equation
149,494.62 : 206,304.18 = 81,511.02 : x - Step 2: Convert to fraction form
149,494.62/206,304.18 = 81,511.02/x - Step 3: Cross multiply
149,494.62x = 206,304.18 × 81,511.02 - Step 4: Simplify right side
149,494.62x = 16,816,064,142.06 - Step 5: Solve for x
x = 16,816,064,142.06/149,494.62 - Step 6: Final answer
x = 112,486.08
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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.