Finding the Fourth Proportional to 135,759.21, 187,344.84 and 75,328.53
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Solution
The fourth proportional to 135,759.21, 187,344.84 and 75,328.53 is: 103,951.78
Step by Step Solution
- Step 1: Write the proportion equation
135,759.21 : 187,344.84 = 75,328.53 : x - Step 2: Convert to fraction form
135,759.21/187,344.84 = 75,328.53/x - Step 3: Cross multiply
135,759.21x = 187,344.84 × 75,328.53 - Step 4: Simplify right side
135,759.21x = 14,112,411,400.29 - Step 5: Solve for x
x = 14,112,411,400.29/135,759.21 - Step 6: Final answer
x = 103,951.78
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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.