Finding the Fourth Proportional to 70,735.36, 106,103.06 and 18,144.84
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Solution
The fourth proportional to 70,735.36, 106,103.06 and 18,144.84 is: 27,217.27
Step by Step Solution
- Step 1: Write the proportion equation
70,735.36 : 106,103.06 = 18,144.84 : x - Step 2: Convert to fraction form
70,735.36/106,103.06 = 18,144.84/x - Step 3: Cross multiply
70,735.36x = 106,103.06 × 18,144.84 - Step 4: Simplify right side
70,735.36x = 1,925,223,047.21 - Step 5: Solve for x
x = 1,925,223,047.21/70,735.36 - Step 6: Final answer
x = 27,217.27
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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.