Finding the Fourth Proportional to 119,249.68, 178,956.54 and 49,128.99
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Solution
The fourth proportional to 119,249.68, 178,956.54 and 49,128.99 is: 73,727.27
Step by Step Solution
- Step 1: Write the proportion equation
119,249.68 : 178,956.54 = 49,128.99 : x - Step 2: Convert to fraction form
119,249.68/178,956.54 = 49,128.99/x - Step 3: Cross multiply
119,249.68x = 178,956.54 × 49,128.99 - Step 4: Simplify right side
119,249.68x = 8,791,953,818.45 - Step 5: Solve for x
x = 8,791,953,818.45/119,249.68 - Step 6: Final answer
x = 73,727.27
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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.