Finding the Fourth Proportional to 125,344.13, 187,922.68 and 75,412.53
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Solution
The fourth proportional to 125,344.13, 187,922.68 and 75,412.53 is: 113,062.53
Step by Step Solution
- Step 1: Write the proportion equation
125,344.13 : 187,922.68 = 75,412.53 : x - Step 2: Convert to fraction form
125,344.13/187,922.68 = 75,412.53/x - Step 3: Cross multiply
125,344.13x = 187,922.68 × 75,412.53 - Step 4: Simplify right side
125,344.13x = 14,171,724,743.18 - Step 5: Solve for x
x = 14,171,724,743.18/125,344.13 - Step 6: Final answer
x = 113,062.53
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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.