Finding the Fourth Proportional to 134,169.75, 185,193.14 and 89,457.75
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Solution
The fourth proportional to 134,169.75, 185,193.14 and 89,457.75 is: 123,477.62
Step by Step Solution
- Step 1: Write the proportion equation
134,169.75 : 185,193.14 = 89,457.75 : x - Step 2: Convert to fraction form
134,169.75/185,193.14 = 89,457.75/x - Step 3: Cross multiply
134,169.75x = 185,193.14 × 89,457.75 - Step 4: Simplify right side
134,169.75x = 16,566,961,172.55 - Step 5: Solve for x
x = 16,566,961,172.55/134,169.75 - Step 6: Final answer
x = 123,477.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.