Finding the Fourth Proportional to 125,074.76, 187,631.58 and 41,988.20
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Solution
The fourth proportional to 125,074.76, 187,631.58 and 41,988.20 is: 62,988.82
Step by Step Solution
- Step 1: Write the proportion equation
125,074.76 : 187,631.58 = 41,988.20 : x - Step 2: Convert to fraction form
125,074.76/187,631.58 = 41,988.20/x - Step 3: Cross multiply
125,074.76x = 187,631.58 × 41,988.20 - Step 4: Simplify right side
125,074.76x = 7,878,311,759.14 - Step 5: Solve for x
x = 7,878,311,759.14/125,074.76 - Step 6: Final answer
x = 62,988.82
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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.