Finding the Fourth Proportional to 160,794.05, 221,909.09 and 89,197.20
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Solution
The fourth proportional to 160,794.05, 221,909.09 and 89,197.20 is: 123,099.52
Step by Step Solution
- Step 1: Write the proportion equation
160,794.05 : 221,909.09 = 89,197.20 : x - Step 2: Convert to fraction form
160,794.05/221,909.09 = 89,197.20/x - Step 3: Cross multiply
160,794.05x = 221,909.09 × 89,197.20 - Step 4: Simplify right side
160,794.05x = 19,793,669,036.56 - Step 5: Solve for x
x = 19,793,669,036.56/160,794.05 - Step 6: Final answer
x = 123,099.52
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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.