Finding the Fourth Proportional to 135,617.66, 187,163.40 and 75,207.26
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Solution
The fourth proportional to 135,617.66, 187,163.40 and 75,207.26 is: 103,792.14
Step by Step Solution
- Step 1: Write the proportion equation
135,617.66 : 187,163.40 = 75,207.26 : x - Step 2: Convert to fraction form
135,617.66/187,163.40 = 75,207.26/x - Step 3: Cross multiply
135,617.66x = 187,163.40 × 75,207.26 - Step 4: Simplify right side
135,617.66x = 14,076,046,486.28 - Step 5: Solve for x
x = 14,076,046,486.28/135,617.66 - Step 6: Final answer
x = 103,792.14
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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.