Finding the Fourth Proportional to 134,662.90, 185,912.13 and 89,401.99
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Solution
The fourth proportional to 134,662.90, 185,912.13 and 89,401.99 is: 123,426.08
Step by Step Solution
- Step 1: Write the proportion equation
134,662.90 : 185,912.13 = 89,401.99 : x - Step 2: Convert to fraction form
134,662.90/185,912.13 = 89,401.99/x - Step 3: Cross multiply
134,662.90x = 185,912.13 × 89,401.99 - Step 4: Simplify right side
134,662.90x = 16,620,914,387.14 - Step 5: Solve for x
x = 16,620,914,387.14/134,662.90 - Step 6: Final answer
x = 123,426.08
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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.