Finding the Fourth Proportional to 121,423.60, 182,135.40 and 110,537.20
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Solution
The fourth proportional to 121,423.60, 182,135.40 and 110,537.20 is: 165,805.80
Step by Step Solution
- Step 1: Write the proportion equation
121,423.60 : 182,135.40 = 110,537.20 : x - Step 2: Convert to fraction form
121,423.60/182,135.40 = 110,537.20/x - Step 3: Cross multiply
121,423.60x = 182,135.40 × 110,537.20 - Step 4: Simplify right side
121,423.60x = 20,132,737,136.88 - Step 5: Solve for x
x = 20,132,737,136.88/121,423.60 - Step 6: Final answer
x = 165,805.80
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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.