Finding the Fourth Proportional to 135,168.87, 186,525.51 and 74,735.88
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Solution
The fourth proportional to 135,168.87, 186,525.51 and 74,735.88 is: 103,131.35
Step by Step Solution
- Step 1: Write the proportion equation
135,168.87 : 186,525.51 = 74,735.88 : x - Step 2: Convert to fraction form
135,168.87/186,525.51 = 74,735.88/x - Step 3: Cross multiply
135,168.87x = 186,525.51 × 74,735.88 - Step 4: Simplify right side
135,168.87x = 13,940,148,132.30 - Step 5: Solve for x
x = 13,940,148,132.30/135,168.87 - Step 6: Final answer
x = 103,131.35
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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.