Finding the Fourth Proportional to 135,740.50, 187,344.27 and 75,330.63
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Solution
The fourth proportional to 135,740.50, 187,344.27 and 75,330.63 is: 103,968.69
Step by Step Solution
- Step 1: Write the proportion equation
135,740.50 : 187,344.27 = 75,330.63 : x - Step 2: Convert to fraction form
135,740.50/187,344.27 = 75,330.63/x - Step 3: Cross multiply
135,740.50x = 187,344.27 × 75,330.63 - Step 4: Simplify right side
135,740.50x = 14,112,761,885.99 - Step 5: Solve for x
x = 14,112,761,885.99/135,740.50 - Step 6: Final answer
x = 103,968.69
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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.