Finding the Fourth Proportional to 147,239.10, 220,955.49 and 80,725.95
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Solution
The fourth proportional to 147,239.10, 220,955.49 and 80,725.95 is: 121,142.02
Step by Step Solution
- Step 1: Write the proportion equation
147,239.10 : 220,955.49 = 80,725.95 : x - Step 2: Convert to fraction form
147,239.10/220,955.49 = 80,725.95/x - Step 3: Cross multiply
147,239.10x = 220,955.49 × 80,725.95 - Step 4: Simplify right side
147,239.10x = 17,836,841,837.97 - Step 5: Solve for x
x = 17,836,841,837.97/147,239.10 - Step 6: Final answer
x = 121,142.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.