Finding the Fourth Proportional to 135,806.24, 187,403.90 and 75,376.96
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Solution
The fourth proportional to 135,806.24, 187,403.90 and 75,376.96 is: 104,015.37
Step by Step Solution
- Step 1: Write the proportion equation
135,806.24 : 187,403.90 = 75,376.96 : x - Step 2: Convert to fraction form
135,806.24/187,403.90 = 75,376.96/x - Step 3: Cross multiply
135,806.24x = 187,403.90 × 75,376.96 - Step 4: Simplify right side
135,806.24x = 14,125,936,274.14 - Step 5: Solve for x
x = 14,125,936,274.14/135,806.24 - Step 6: Final answer
x = 104,015.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.