Finding the Fourth Proportional to 124.05, 186.12 and 69.99
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Solution
The fourth proportional to 124.05, 186.12 and 69.99 is: 105.01
Step by Step Solution
- Step 1: Write the proportion equation
124.05 : 186.12 = 69.99 : x - Step 2: Convert to fraction form
124.05/186.12 = 69.99/x - Step 3: Cross multiply
124.05x = 186.12 × 69.99 - Step 4: Simplify right side
124.05x = 13,026.54 - Step 5: Solve for x
x = 13,026.54/124.05 - Step 6: Final answer
x = 105.01
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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.