Finding the Fourth Proportional to 119,457.86, 179,186.60 and 81,904.08
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Solution
The fourth proportional to 119,457.86, 179,186.60 and 81,904.08 is: 122,855.99
Step by Step Solution
- Step 1: Write the proportion equation
119,457.86 : 179,186.60 = 81,904.08 : x - Step 2: Convert to fraction form
119,457.86/179,186.60 = 81,904.08/x - Step 3: Cross multiply
119,457.86x = 179,186.60 × 81,904.08 - Step 4: Simplify right side
119,457.86x = 14,676,113,211.81 - Step 5: Solve for x
x = 14,676,113,211.81/119,457.86 - Step 6: Final answer
x = 122,855.99
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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.