Finding the Fourth Proportional to 129,021.80, 193,532.70 and 59,037.80
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Solution
The fourth proportional to 129,021.80, 193,532.70 and 59,037.80 is: 88,556.70
Step by Step Solution
- Step 1: Write the proportion equation
129,021.80 : 193,532.70 = 59,037.80 : x - Step 2: Convert to fraction form
129,021.80/193,532.70 = 59,037.80/x - Step 3: Cross multiply
129,021.80x = 193,532.70 × 59,037.80 - Step 4: Simplify right side
129,021.80x = 11,425,744,836.06 - Step 5: Solve for x
x = 11,425,744,836.06/129,021.80 - Step 6: Final answer
x = 88,556.70
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1.5x scale
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.