Finding the Fourth Proportional to 124.63, 186.95 and 67.99
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Solution
The fourth proportional to 124.63, 186.95 and 67.99 is: 101.99
Step by Step Solution
- Step 1: Write the proportion equation
124.63 : 186.95 = 67.99 : x - Step 2: Convert to fraction form
124.63/186.95 = 67.99/x - Step 3: Cross multiply
124.63x = 186.95 × 67.99 - Step 4: Simplify right side
124.63x = 12,710.73 - Step 5: Solve for x
x = 12,710.73/124.63 - Step 6: Final answer
x = 101.99
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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.