Finding the Fourth Proportional to 125.05, 187.62 and 70.99
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Solution
The fourth proportional to 125.05, 187.62 and 70.99 is: 106.51
Step by Step Solution
- Step 1: Write the proportion equation
125.05 : 187.62 = 70.99 : x - Step 2: Convert to fraction form
125.05/187.62 = 70.99/x - Step 3: Cross multiply
125.05x = 187.62 × 70.99 - Step 4: Simplify right side
125.05x = 13,319.14 - Step 5: Solve for x
x = 13,319.14/125.05 - Step 6: Final answer
x = 106.51
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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.