Finding the Fourth Proportional to 129.02, 177.92 and 93.99
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Solution
The fourth proportional to 129.02, 177.92 and 93.99 is: 129.61
Step by Step Solution
- Step 1: Write the proportion equation
129.02 : 177.92 = 93.99 : x - Step 2: Convert to fraction form
129.02/177.92 = 93.99/x - Step 3: Cross multiply
129.02x = 177.92 × 93.99 - Step 4: Simplify right side
129.02x = 16,722.70 - Step 5: Solve for x
x = 16,722.70/129.02 - Step 6: Final answer
x = 129.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.