Finding the Fourth Proportional to 169,408.86, 254,136.70 and 57,121.18
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Solution
The fourth proportional to 169,408.86, 254,136.70 and 57,121.18 is: 85,689.66
Step by Step Solution
- Step 1: Write the proportion equation
169,408.86 : 254,136.70 = 57,121.18 : x - Step 2: Convert to fraction form
169,408.86/254,136.70 = 57,121.18/x - Step 3: Cross multiply
169,408.86x = 254,136.70 × 57,121.18 - Step 4: Simplify right side
169,408.86x = 14,516,588,185.31 - Step 5: Solve for x
x = 14,516,588,185.31/169,408.86 - Step 6: Final answer
x = 85,689.66
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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.