Finding the Fourth Proportional to 134,821.60, 202,232.40 and 129,637.60
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Solution
The fourth proportional to 134,821.60, 202,232.40 and 129,637.60 is: 194,456.40
Step by Step Solution
- Step 1: Write the proportion equation
134,821.60 : 202,232.40 = 129,637.60 : x - Step 2: Convert to fraction form
134,821.60/202,232.40 = 129,637.60/x - Step 3: Cross multiply
134,821.60x = 202,232.40 × 129,637.60 - Step 4: Simplify right side
134,821.60x = 26,216,922,978.24 - Step 5: Solve for x
x = 26,216,922,978.24/134,821.60 - Step 6: Final answer
x = 194,456.40
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1.5x scale
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.