Finding the Fourth Proportional to 136,878.48, 205,247.61 and 72,872.99
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Solution
The fourth proportional to 136,878.48, 205,247.61 and 72,872.99 is: 109,272.15
Step by Step Solution
- Step 1: Write the proportion equation
136,878.48 : 205,247.61 = 72,872.99 : x - Step 2: Convert to fraction form
136,878.48/205,247.61 = 72,872.99/x - Step 3: Cross multiply
136,878.48x = 205,247.61 × 72,872.99 - Step 4: Simplify right side
136,878.48x = 14,957,006,004.82 - Step 5: Solve for x
x = 14,957,006,004.82/136,878.48 - Step 6: Final answer
x = 109,272.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.