Finding the Fourth Proportional to 157,516.76, 217,208.04 and 103,733.12
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Solution
The fourth proportional to 157,516.76, 217,208.04 and 103,733.12 is: 143,042.99
Step by Step Solution
- Step 1: Write the proportion equation
157,516.76 : 217,208.04 = 103,733.12 : x - Step 2: Convert to fraction form
157,516.76/217,208.04 = 103,733.12/x - Step 3: Cross multiply
157,516.76x = 217,208.04 × 103,733.12 - Step 4: Simplify right side
157,516.76x = 22,531,667,678.28 - Step 5: Solve for x
x = 22,531,667,678.28/157,516.76 - Step 6: Final answer
x = 143,042.99
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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.