Finding the Fourth Proportional to 134,138.05, 201,207.08 and 40,643.80
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Solution
The fourth proportional to 134,138.05, 201,207.08 and 40,643.80 is: 60,965.70
Step by Step Solution
- Step 1: Write the proportion equation
134,138.05 : 201,207.08 = 40,643.80 : x - Step 2: Convert to fraction form
134,138.05/201,207.08 = 40,643.80/x - Step 3: Cross multiply
134,138.05x = 201,207.08 × 40,643.80 - Step 4: Simplify right side
134,138.05x = 8,177,820,114.89 - Step 5: Solve for x
x = 8,177,820,114.89/134,138.05 - Step 6: Final answer
x = 60,965.70
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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.