Finding the Fourth Proportional to 160,859.93, 221,986.97 and 89,239.95
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Solution
The fourth proportional to 160,859.93, 221,986.97 and 89,239.95 is: 123,151.28
Step by Step Solution
- Step 1: Write the proportion equation
160,859.93 : 221,986.97 = 89,239.95 : x - Step 2: Convert to fraction form
160,859.93/221,986.97 = 89,239.95/x - Step 3: Cross multiply
160,859.93x = 221,986.97 × 89,239.95 - Step 4: Simplify right side
160,859.93x = 19,810,106,103.45 - Step 5: Solve for x
x = 19,810,106,103.45/160,859.93 - Step 6: Final answer
x = 123,151.28
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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.