Finding the Fourth Proportional to 135,193.08, 186,579.72 and 74,777.88
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Solution
The fourth proportional to 135,193.08, 186,579.72 and 74,777.88 is: 103,200.81
Step by Step Solution
- Step 1: Write the proportion equation
135,193.08 : 186,579.72 = 74,777.88 : x - Step 2: Convert to fraction form
135,193.08/186,579.72 = 74,777.88/x - Step 3: Cross multiply
135,193.08x = 186,579.72 × 74,777.88 - Step 4: Simplify right side
135,193.08x = 13,952,035,912.59 - Step 5: Solve for x
x = 13,952,035,912.59/135,193.08 - Step 6: Final answer
x = 103,200.81
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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.