Finding the Fourth Proportional to 135,575.19, 187,091.51 and 74,320.97
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Solution
The fourth proportional to 135,575.19, 187,091.51 and 74,320.97 is: 102,561.69
Step by Step Solution
- Step 1: Write the proportion equation
135,575.19 : 187,091.51 = 74,320.97 : x - Step 2: Convert to fraction form
135,575.19/187,091.51 = 74,320.97/x - Step 3: Cross multiply
135,575.19x = 187,091.51 × 74,320.97 - Step 4: Simplify right side
135,575.19x = 13,904,821,194.90 - Step 5: Solve for x
x = 13,904,821,194.90/135,575.19 - Step 6: Final answer
x = 102,561.69
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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.