Finding the Fourth Proportional to 160,206.42, 221,180.79 and 99,858.80
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Solution
The fourth proportional to 160,206.42, 221,180.79 and 99,858.80 is: 137,864.95
Step by Step Solution
- Step 1: Write the proportion equation
160,206.42 : 221,180.79 = 99,858.80 : x - Step 2: Convert to fraction form
160,206.42/221,180.79 = 99,858.80/x - Step 3: Cross multiply
160,206.42x = 221,180.79 × 99,858.80 - Step 4: Simplify right side
160,206.42x = 22,086,849,522.23 - Step 5: Solve for x
x = 22,086,849,522.23/160,206.42 - Step 6: Final answer
x = 137,864.95
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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.