Finding the Fourth Proportional to 129,997.80, 182,521.80 and 129,997.80
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Solution
The fourth proportional to 129,997.80, 182,521.80 and 129,997.80 is: 182,521.80
Step by Step Solution
- Step 1: Write the proportion equation
129,997.80 : 182,521.80 = 129,997.80 : x - Step 2: Convert to fraction form
129,997.80/182,521.80 = 129,997.80/x - Step 3: Cross multiply
129,997.80x = 182,521.80 × 129,997.80 - Step 4: Simplify right side
129,997.80x = 23,727,432,452.04 - Step 5: Solve for x
x = 23,727,432,452.04/129,997.80 - Step 6: Final answer
x = 182,521.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.