Finding the Fourth Proportional to 157.52, 235.36 and 125.12
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Solution
The fourth proportional to 157.52, 235.36 and 125.12 is: 186.95
Step by Step Solution
- Step 1: Write the proportion equation
157.52 : 235.36 = 125.12 : x - Step 2: Convert to fraction form
157.52/235.36 = 125.12/x - Step 3: Cross multiply
157.52x = 235.36 × 125.12 - Step 4: Simplify right side
157.52x = 29,448.24 - Step 5: Solve for x
x = 29,448.24/157.52 - Step 6: Final answer
x = 186.95
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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.