Finding the Fourth Proportional to 133,035.20, 199,261.20 and 115,539.20
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Solution
The fourth proportional to 133,035.20, 199,261.20 and 115,539.20 is: 173,055.55
Step by Step Solution
- Step 1: Write the proportion equation
133,035.20 : 199,261.20 = 115,539.20 : x - Step 2: Convert to fraction form
133,035.20/199,261.20 = 115,539.20/x - Step 3: Cross multiply
133,035.20x = 199,261.20 × 115,539.20 - Step 4: Simplify right side
133,035.20x = 23,022,479,639.04 - Step 5: Solve for x
x = 23,022,479,639.04/133,035.20 - Step 6: Final answer
x = 173,055.55
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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.