Finding the Fourth Proportional to 135,170.53, 186,548.94 and 74,745.73
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Solution
The fourth proportional to 135,170.53, 186,548.94 and 74,745.73 is: 103,156.63
Step by Step Solution
- Step 1: Write the proportion equation
135,170.53 : 186,548.94 = 74,745.73 : x - Step 2: Convert to fraction form
135,170.53/186,548.94 = 74,745.73/x - Step 3: Cross multiply
135,170.53x = 186,548.94 × 74,745.73 - Step 4: Simplify right side
135,170.53x = 13,943,736,701.03 - Step 5: Solve for x
x = 13,943,736,701.03/135,170.53 - Step 6: Final answer
x = 103,156.63
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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.