Finding the Fourth Proportional to 157.74, 236.98 and 93.66
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Solution
The fourth proportional to 157.74, 236.98 and 93.66 is: 140.71
Step by Step Solution
- Step 1: Write the proportion equation
157.74 : 236.98 = 93.66 : x - Step 2: Convert to fraction form
157.74/236.98 = 93.66/x - Step 3: Cross multiply
157.74x = 236.98 × 93.66 - Step 4: Simplify right side
157.74x = 22,195.55 - Step 5: Solve for x
x = 22,195.55/157.74 - Step 6: Final answer
x = 140.71
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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.