Finding the Fourth Proportional to 160,138.31, 221,012.82 and 92,153.88
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Solution
The fourth proportional to 160,138.31, 221,012.82 and 92,153.88 is: 127,184.99
Step by Step Solution
- Step 1: Write the proportion equation
160,138.31 : 221,012.82 = 92,153.88 : x - Step 2: Convert to fraction form
160,138.31/221,012.82 = 92,153.88/x - Step 3: Cross multiply
160,138.31x = 221,012.82 × 92,153.88 - Step 4: Simplify right side
160,138.31x = 20,367,188,892.74 - Step 5: Solve for x
x = 20,367,188,892.74/160,138.31 - Step 6: Final answer
x = 127,184.99
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1.5x scale
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.