Finding the Fourth Proportional to 132,632.79, 182,979.14 and 81,630.14
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Solution
The fourth proportional to 132,632.79, 182,979.14 and 81,630.14 is: 112,616.28
Step by Step Solution
- Step 1: Write the proportion equation
132,632.79 : 182,979.14 = 81,630.14 : x - Step 2: Convert to fraction form
132,632.79/182,979.14 = 81,630.14/x - Step 3: Cross multiply
132,632.79x = 182,979.14 × 81,630.14 - Step 4: Simplify right side
132,632.79x = 14,936,611,492.23 - Step 5: Solve for x
x = 14,936,611,492.23/132,632.79 - Step 6: Final answer
x = 112,616.28
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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.