Finding the Fourth Proportional to 132,965.19, 199,485.32 and 54,135.99
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Solution
The fourth proportional to 132,965.19, 199,485.32 and 54,135.99 is: 81,219.27
Step by Step Solution
- Step 1: Write the proportion equation
132,965.19 : 199,485.32 = 54,135.99 : x - Step 2: Convert to fraction form
132,965.19/199,485.32 = 54,135.99/x - Step 3: Cross multiply
132,965.19x = 199,485.32 × 54,135.99 - Step 4: Simplify right side
132,965.19x = 10,799,335,017.99 - Step 5: Solve for x
x = 10,799,335,017.99/132,965.19 - Step 6: Final answer
x = 81,219.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.