Finding the Fourth Proportional to 160,387.43, 221,309.99 and 92,391.12
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Solution
The fourth proportional to 160,387.43, 221,309.99 and 92,391.12 is: 127,485.54
Step by Step Solution
- Step 1: Write the proportion equation
160,387.43 : 221,309.99 = 92,391.12 : x - Step 2: Convert to fraction form
160,387.43/221,309.99 = 92,391.12/x - Step 3: Cross multiply
160,387.43x = 221,309.99 × 92,391.12 - Step 4: Simplify right side
160,387.43x = 20,447,077,843.29 - Step 5: Solve for x
x = 20,447,077,843.29/160,387.43 - Step 6: Final answer
x = 127,485.54
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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.