Finding the Fourth Proportional to 134,881.20, 202,321.80 and 46,126.80
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Solution
The fourth proportional to 134,881.20, 202,321.80 and 46,126.80 is: 69,190.20
Step by Step Solution
- Step 1: Write the proportion equation
134,881.20 : 202,321.80 = 46,126.80 : x - Step 2: Convert to fraction form
134,881.20/202,321.80 = 46,126.80/x - Step 3: Cross multiply
134,881.20x = 202,321.80 × 46,126.80 - Step 4: Simplify right side
134,881.20x = 9,332,457,204.24 - Step 5: Solve for x
x = 9,332,457,204.24/134,881.20 - Step 6: Final answer
x = 69,190.20
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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.