Finding the Fourth Proportional to 131,888.96, 182,006.88 and 72,272.96
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Solution
The fourth proportional to 131,888.96, 182,006.88 and 72,272.96 is: 99,736.75
Step by Step Solution
- Step 1: Write the proportion equation
131,888.96 : 182,006.88 = 72,272.96 : x - Step 2: Convert to fraction form
131,888.96/182,006.88 = 72,272.96/x - Step 3: Cross multiply
131,888.96x = 182,006.88 × 72,272.96 - Step 4: Simplify right side
131,888.96x = 13,154,175,957.96 - Step 5: Solve for x
x = 13,154,175,957.96/131,888.96 - Step 6: Final answer
x = 99,736.75
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1.5x scale
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.