Finding the Fourth Proportional to 115,136.97, 172,728.74 and 48,577.26
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Solution
The fourth proportional to 115,136.97, 172,728.74 and 48,577.26 is: 72,875.71
Step by Step Solution
- Step 1: Write the proportion equation
115,136.97 : 172,728.74 = 48,577.26 : x - Step 2: Convert to fraction form
115,136.97/172,728.74 = 48,577.26/x - Step 3: Cross multiply
115,136.97x = 172,728.74 × 48,577.26 - Step 4: Simplify right side
115,136.97x = 8,390,688,669.57 - Step 5: Solve for x
x = 8,390,688,669.57/115,136.97 - Step 6: Final answer
x = 72,875.71
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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.