Finding the Fourth Proportional to 148,299.75, 204,653.70 and 84,636.18
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Solution
The fourth proportional to 148,299.75, 204,653.70 and 84,636.18 is: 116,797.95
Step by Step Solution
- Step 1: Write the proportion equation
148,299.75 : 204,653.70 = 84,636.18 : x - Step 2: Convert to fraction form
148,299.75/204,653.70 = 84,636.18/x - Step 3: Cross multiply
148,299.75x = 204,653.70 × 84,636.18 - Step 4: Simplify right side
148,299.75x = 17,321,107,390.87 - Step 5: Solve for x
x = 17,321,107,390.87/148,299.75 - Step 6: Final answer
x = 116,797.95
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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.