Finding the Fourth Proportional to 135,680.91, 187,251.12 and 75,270.99
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Solution
The fourth proportional to 135,680.91, 187,251.12 and 75,270.99 is: 103,880.33
Step by Step Solution
- Step 1: Write the proportion equation
135,680.91 : 187,251.12 = 75,270.99 : x - Step 2: Convert to fraction form
135,680.91/187,251.12 = 75,270.99/x - Step 3: Cross multiply
135,680.91x = 187,251.12 × 75,270.99 - Step 4: Simplify right side
135,680.91x = 14,094,577,181.01 - Step 5: Solve for x
x = 14,094,577,181.01/135,680.91 - Step 6: Final answer
x = 103,880.33
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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.