Finding the Fourth Proportional to 129.99, 194.99 and 43.36
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Solution
The fourth proportional to 129.99, 194.99 and 43.36 is: 65.04
Step by Step Solution
- Step 1: Write the proportion equation
129.99 : 194.99 = 43.36 : x - Step 2: Convert to fraction form
129.99/194.99 = 43.36/x - Step 3: Cross multiply
129.99x = 194.99 × 43.36 - Step 4: Simplify right side
129.99x = 8,454.06 - Step 5: Solve for x
x = 8,454.06/129.99 - Step 6: Final answer
x = 65.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.