Finding the Fourth Proportional to 134,568.10, 201,609.15 and 78,362.20
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Solution
The fourth proportional to 134,568.10, 201,609.15 and 78,362.20 is: 117,401.80
Step by Step Solution
- Step 1: Write the proportion equation
134,568.10 : 201,609.15 = 78,362.20 : x - Step 2: Convert to fraction form
134,568.10/201,609.15 = 78,362.20/x - Step 3: Cross multiply
134,568.10x = 201,609.15 × 78,362.20 - Step 4: Simplify right side
134,568.10x = 15,798,536,534.13 - Step 5: Solve for x
x = 15,798,536,534.13/134,568.10 - Step 6: Final answer
x = 117,401.80
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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.