Finding the Fourth Proportional to 125.56, 188.08 and 79.70
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Solution
The fourth proportional to 125.56, 188.08 and 79.70 is: 119.38
Step by Step Solution
- Step 1: Write the proportion equation
125.56 : 188.08 = 79.70 : x - Step 2: Convert to fraction form
125.56/188.08 = 79.70/x - Step 3: Cross multiply
125.56x = 188.08 × 79.70 - Step 4: Simplify right side
125.56x = 14,989.66 - Step 5: Solve for x
x = 14,989.66/125.56 - Step 6: Final answer
x = 119.38
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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.