Finding the Fourth Proportional to 119,529.14, 178,419.18 and 105,341.81
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Solution
The fourth proportional to 119,529.14, 178,419.18 and 105,341.81 is: 157,241.99
Step by Step Solution
- Step 1: Write the proportion equation
119,529.14 : 178,419.18 = 105,341.81 : x - Step 2: Convert to fraction form
119,529.14/178,419.18 = 105,341.81/x - Step 3: Cross multiply
119,529.14x = 178,419.18 × 105,341.81 - Step 4: Simplify right side
119,529.14x = 18,794,999,359.92 - Step 5: Solve for x
x = 18,794,999,359.92/119,529.14 - Step 6: Final answer
x = 157,241.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.