Finding the Fourth Proportional to 160,542.70, 221,552.52 and 91,630.79
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Solution
The fourth proportional to 160,542.70, 221,552.52 and 91,630.79 is: 126,452.54
Step by Step Solution
- Step 1: Write the proportion equation
160,542.70 : 221,552.52 = 91,630.79 : x - Step 2: Convert to fraction form
160,542.70/221,552.52 = 91,630.79/x - Step 3: Cross multiply
160,542.70x = 221,552.52 × 91,630.79 - Step 4: Simplify right side
160,542.70x = 20,301,032,434.09 - Step 5: Solve for x
x = 20,301,032,434.09/160,542.70 - Step 6: Final answer
x = 126,452.54
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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.