Finding the Fourth Proportional to 125,989.75, 188,984.63 and 52,117.75
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Solution
The fourth proportional to 125,989.75, 188,984.63 and 52,117.75 is: 78,176.63
Step by Step Solution
- Step 1: Write the proportion equation
125,989.75 : 188,984.63 = 52,117.75 : x - Step 2: Convert to fraction form
125,989.75/188,984.63 = 52,117.75/x - Step 3: Cross multiply
125,989.75x = 188,984.63 × 52,117.75 - Step 4: Simplify right side
125,989.75x = 9,849,453,700.18 - Step 5: Solve for x
x = 9,849,453,700.18/125,989.75 - Step 6: Final answer
x = 78,176.63
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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.