Finding the Fourth Proportional to 135,168.27, 186,524.68 and 74,735.28
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Solution
The fourth proportional to 135,168.27, 186,524.68 and 74,735.28 is: 103,130.52
Step by Step Solution
- Step 1: Write the proportion equation
135,168.27 : 186,524.68 = 74,735.28 : x - Step 2: Convert to fraction form
135,168.27/186,524.68 = 74,735.28/x - Step 3: Cross multiply
135,168.27x = 186,524.68 × 74,735.28 - Step 4: Simplify right side
135,168.27x = 13,939,974,186.71 - Step 5: Solve for x
x = 13,939,974,186.71/135,168.27 - Step 6: Final answer
x = 103,130.52
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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.