Finding the Fourth Proportional to 124.97, 187.36 and 76.23
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Solution
The fourth proportional to 124.97, 187.36 and 76.23 is: 114.28
Step by Step Solution
- Step 1: Write the proportion equation
124.97 : 187.36 = 76.23 : x - Step 2: Convert to fraction form
124.97/187.36 = 76.23/x - Step 3: Cross multiply
124.97x = 187.36 × 76.23 - Step 4: Simplify right side
124.97x = 14,282.26 - Step 5: Solve for x
x = 14,282.26/124.97 - Step 6: Final answer
x = 114.28
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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.