Finding the Fourth Proportional to 136,427.08, 204,639.20 and 53,320.36
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Solution
The fourth proportional to 136,427.08, 204,639.20 and 53,320.36 is: 79,979.99
Step by Step Solution
- Step 1: Write the proportion equation
136,427.08 : 204,639.20 = 53,320.36 : x - Step 2: Convert to fraction form
136,427.08/204,639.20 = 53,320.36/x - Step 3: Cross multiply
136,427.08x = 204,639.20 × 53,320.36 - Step 4: Simplify right side
136,427.08x = 10,911,435,814.11 - Step 5: Solve for x
x = 10,911,435,814.11/136,427.08 - Step 6: Final answer
x = 79,979.99
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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.