Finding the Fourth Proportional to 135,165.51, 186,525.11 and 74,734.62
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Solution
The fourth proportional to 135,165.51, 186,525.11 and 74,734.62 is: 103,131.95
Step by Step Solution
- Step 1: Write the proportion equation
135,165.51 : 186,525.11 = 74,734.62 : x - Step 2: Convert to fraction form
135,165.51/186,525.11 = 74,734.62/x - Step 3: Cross multiply
135,165.51x = 186,525.11 × 74,734.62 - Step 4: Simplify right side
135,165.51x = 13,939,882,842.64 - Step 5: Solve for x
x = 13,939,882,842.64/135,165.51 - Step 6: Final answer
x = 103,131.95
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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.