Finding the Fourth Proportional to 123,747.70, 170,642.74 and 73,436.98
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Solution
The fourth proportional to 123,747.70, 170,642.74 and 73,436.98 is: 101,266.42
Step by Step Solution
- Step 1: Write the proportion equation
123,747.70 : 170,642.74 = 73,436.98 : x - Step 2: Convert to fraction form
123,747.70/170,642.74 = 73,436.98/x - Step 3: Cross multiply
123,747.70x = 170,642.74 × 73,436.98 - Step 4: Simplify right side
123,747.70x = 12,531,486,264.13 - Step 5: Solve for x
x = 12,531,486,264.13/123,747.70 - Step 6: Final answer
x = 101,266.42
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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.