Finding the Fourth Proportional to 129,352.60, 194,028.90 and 97,859.80
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Solution
The fourth proportional to 129,352.60, 194,028.90 and 97,859.80 is: 146,789.70
Step by Step Solution
- Step 1: Write the proportion equation
129,352.60 : 194,028.90 = 97,859.80 : x - Step 2: Convert to fraction form
129,352.60/194,028.90 = 97,859.80/x - Step 3: Cross multiply
129,352.60x = 194,028.90 × 97,859.80 - Step 4: Simplify right side
129,352.60x = 18,987,629,348.22 - Step 5: Solve for x
x = 18,987,629,348.22/129,352.60 - Step 6: Final answer
x = 146,789.70
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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.