Finding the Fourth Proportional to 83,008.26, 123,864.97 and 74,062.09
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Solution
The fourth proportional to 83,008.26, 123,864.97 and 74,062.09 is: 110,515.49
Step by Step Solution
- Step 1: Write the proportion equation
83,008.26 : 123,864.97 = 74,062.09 : x - Step 2: Convert to fraction form
83,008.26/123,864.97 = 74,062.09/x - Step 3: Cross multiply
83,008.26x = 123,864.97 × 74,062.09 - Step 4: Simplify right side
83,008.26x = 9,173,698,555.99 - Step 5: Solve for x
x = 9,173,698,555.99/83,008.26 - Step 6: Final answer
x = 110,515.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.