Finding the Fourth Proportional to 187,615.81, 258,910.25 and 101,575.70
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Solution
The fourth proportional to 187,615.81, 258,910.25 and 101,575.70 is: 140,174.70
Step by Step Solution
- Step 1: Write the proportion equation
187,615.81 : 258,910.25 = 101,575.70 : x - Step 2: Convert to fraction form
187,615.81/258,910.25 = 101,575.70/x - Step 3: Cross multiply
187,615.81x = 258,910.25 × 101,575.70 - Step 4: Simplify right side
187,615.81x = 26,298,989,880.93 - Step 5: Solve for x
x = 26,298,989,880.93/187,615.81 - Step 6: Final answer
x = 140,174.70
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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.