Finding the Fourth Proportional to 157.18, 235.38 and 84.82
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Solution
The fourth proportional to 157.18, 235.38 and 84.82 is: 127.02
Step by Step Solution
- Step 1: Write the proportion equation
157.18 : 235.38 = 84.82 : x - Step 2: Convert to fraction form
157.18/235.38 = 84.82/x - Step 3: Cross multiply
157.18x = 235.38 × 84.82 - Step 4: Simplify right side
157.18x = 19,964.93 - Step 5: Solve for x
x = 19,964.93/157.18 - Step 6: Final answer
x = 127.02
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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.