Finding the Fourth Proportional to 134,138.70, 201,208.05 and 40,649.10
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Solution
The fourth proportional to 134,138.70, 201,208.05 and 40,649.10 is: 60,973.65
Step by Step Solution
- Step 1: Write the proportion equation
134,138.70 : 201,208.05 = 40,649.10 : x - Step 2: Convert to fraction form
134,138.70/201,208.05 = 40,649.10/x - Step 3: Cross multiply
134,138.70x = 201,208.05 × 40,649.10 - Step 4: Simplify right side
134,138.70x = 8,178,926,145.26 - Step 5: Solve for x
x = 8,178,926,145.26/134,138.70 - Step 6: Final answer
x = 60,973.65
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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.