Finding the Fourth Proportional to 129,693.60, 194,626.80 and 59,536.80
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Solution
The fourth proportional to 129,693.60, 194,626.80 and 59,536.80 is: 89,344.86
Step by Step Solution
- Step 1: Write the proportion equation
129,693.60 : 194,626.80 = 59,536.80 : x - Step 2: Convert to fraction form
129,693.60/194,626.80 = 59,536.80/x - Step 3: Cross multiply
129,693.60x = 194,626.80 × 59,536.80 - Step 4: Simplify right side
129,693.60x = 11,587,456,866.24 - Step 5: Solve for x
x = 11,587,456,866.24/129,693.60 - Step 6: Final answer
x = 89,344.86
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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.