Finding the Fourth Proportional to 146,220.21, 201,783.94 and 79,152.21
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Solution
The fourth proportional to 146,220.21, 201,783.94 and 79,152.21 is: 109,230.08
Step by Step Solution
- Step 1: Write the proportion equation
146,220.21 : 201,783.94 = 79,152.21 : x - Step 2: Convert to fraction form
146,220.21/201,783.94 = 79,152.21/x - Step 3: Cross multiply
146,220.21x = 201,783.94 × 79,152.21 - Step 4: Simplify right side
146,220.21x = 15,971,644,595.63 - Step 5: Solve for x
x = 15,971,644,595.63/146,220.21 - Step 6: Final answer
x = 109,230.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.