Finding the Fourth Proportional to 130,435.20, 195,652.80 and 68,227.20
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Solution
The fourth proportional to 130,435.20, 195,652.80 and 68,227.20 is: 102,340.80
Step by Step Solution
- Step 1: Write the proportion equation
130,435.20 : 195,652.80 = 68,227.20 : x - Step 2: Convert to fraction form
130,435.20/195,652.80 = 68,227.20/x - Step 3: Cross multiply
130,435.20x = 195,652.80 × 68,227.20 - Step 4: Simplify right side
130,435.20x = 13,348,842,716.16 - Step 5: Solve for x
x = 13,348,842,716.16/130,435.20 - Step 6: Final answer
x = 102,340.80
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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.