Finding the Fourth Proportional to 134,832.40, 202,297.20 and 129,972.40
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Solution
The fourth proportional to 134,832.40, 202,297.20 and 129,972.40 is: 195,005.45
Step by Step Solution
- Step 1: Write the proportion equation
134,832.40 : 202,297.20 = 129,972.40 : x - Step 2: Convert to fraction form
134,832.40/202,297.20 = 129,972.40/x - Step 3: Cross multiply
134,832.40x = 202,297.20 × 129,972.40 - Step 4: Simplify right side
134,832.40x = 26,293,052,597.28 - Step 5: Solve for x
x = 26,293,052,597.28/134,832.40 - Step 6: Final answer
x = 195,005.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.