Finding the Fourth Proportional to 147,004.20, 202,860.18 and 79,936.20
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Solution
The fourth proportional to 147,004.20, 202,860.18 and 79,936.20 is: 110,308.90
Step by Step Solution
- Step 1: Write the proportion equation
147,004.20 : 202,860.18 = 79,936.20 : x - Step 2: Convert to fraction form
147,004.20/202,860.18 = 79,936.20/x - Step 3: Cross multiply
147,004.20x = 202,860.18 × 79,936.20 - Step 4: Simplify right side
147,004.20x = 16,215,871,920.52 - Step 5: Solve for x
x = 16,215,871,920.52/147,004.20 - Step 6: Final answer
x = 110,308.90
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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.