Finding the Fourth Proportional to 134,478.36, 201,749.12 and 75,354.84
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Solution
The fourth proportional to 134,478.36, 201,749.12 and 75,354.84 is: 113,049.96
Step by Step Solution
- Step 1: Write the proportion equation
134,478.36 : 201,749.12 = 75,354.84 : x - Step 2: Convert to fraction form
134,478.36/201,749.12 = 75,354.84/x - Step 3: Cross multiply
134,478.36x = 201,749.12 × 75,354.84 - Step 4: Simplify right side
134,478.36x = 15,202,772,657.74 - Step 5: Solve for x
x = 15,202,772,657.74/134,478.36 - Step 6: Final answer
x = 113,049.96
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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.