Finding the Fourth Proportional to 137,782.24, 206,136.18 and 120,780.28
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Solution
The fourth proportional to 137,782.24, 206,136.18 and 120,780.28 is: 180,699.53
Step by Step Solution
- Step 1: Write the proportion equation
137,782.24 : 206,136.18 = 120,780.28 : x - Step 2: Convert to fraction form
137,782.24/206,136.18 = 120,780.28/x - Step 3: Cross multiply
137,782.24x = 206,136.18 × 120,780.28 - Step 4: Simplify right side
137,782.24x = 24,897,185,538.53 - Step 5: Solve for x
x = 24,897,185,538.53/137,782.24 - Step 6: Final answer
x = 180,699.53
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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.