Finding the Fourth Proportional to 134,727.60, 201,872.70 and 84,718.20
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Solution
The fourth proportional to 134,727.60, 201,872.70 and 84,718.20 is: 126,939.78
Step by Step Solution
- Step 1: Write the proportion equation
134,727.60 : 201,872.70 = 84,718.20 : x - Step 2: Convert to fraction form
134,727.60/201,872.70 = 84,718.20/x - Step 3: Cross multiply
134,727.60x = 201,872.70 × 84,718.20 - Step 4: Simplify right side
134,727.60x = 17,102,291,773.14 - Step 5: Solve for x
x = 17,102,291,773.14/134,727.60 - Step 6: Final answer
x = 126,939.78
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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.