Finding the Fourth Proportional to 125.88, 187.68 and 118.99
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Solution
The fourth proportional to 125.88, 187.68 and 118.99 is: 177.41
Step by Step Solution
- Step 1: Write the proportion equation
125.88 : 187.68 = 118.99 : x - Step 2: Convert to fraction form
125.88/187.68 = 118.99/x - Step 3: Cross multiply
125.88x = 187.68 × 118.99 - Step 4: Simplify right side
125.88x = 22,332.04 - Step 5: Solve for x
x = 22,332.04/125.88 - Step 6: Final answer
x = 177.41
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.