Finding the Fourth Proportional to 125.79, 188.68 and 44.63
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Solution
The fourth proportional to 125.79, 188.68 and 44.63 is: 66.95
Step by Step Solution
- Step 1: Write the proportion equation
125.79 : 188.68 = 44.63 : x - Step 2: Convert to fraction form
125.79/188.68 = 44.63/x - Step 3: Cross multiply
125.79x = 188.68 × 44.63 - Step 4: Simplify right side
125.79x = 8,421.59 - Step 5: Solve for x
x = 8,421.59/125.79 - Step 6: Final answer
x = 66.95
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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.