Finding the Fourth Proportional to 136,995.19, 205,509.39 and 48,230.53
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Solution
The fourth proportional to 136,995.19, 205,509.39 and 48,230.53 is: 72,351.64
Step by Step Solution
- Step 1: Write the proportion equation
136,995.19 : 205,509.39 = 48,230.53 : x - Step 2: Convert to fraction form
136,995.19/205,509.39 = 48,230.53/x - Step 3: Cross multiply
136,995.19x = 205,509.39 × 48,230.53 - Step 4: Simplify right side
136,995.19x = 9,911,826,799.68 - Step 5: Solve for x
x = 9,911,826,799.68/136,995.19 - Step 6: Final answer
x = 72,351.64
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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.