Finding the Fourth Proportional to 135,757.44, 187,342.39 and 75,326.79
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Solution
The fourth proportional to 135,757.44, 187,342.39 and 75,326.79 is: 103,949.37
Step by Step Solution
- Step 1: Write the proportion equation
135,757.44 : 187,342.39 = 75,326.79 : x - Step 2: Convert to fraction form
135,757.44/187,342.39 = 75,326.79/x - Step 3: Cross multiply
135,757.44x = 187,342.39 × 75,326.79 - Step 4: Simplify right side
135,757.44x = 14,111,900,869.63 - Step 5: Solve for x
x = 14,111,900,869.63/135,757.44 - Step 6: Final answer
x = 103,949.37
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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.