Finding the Fourth Proportional to 157,516.13, 217,369.41 and 85,894.67
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Solution
The fourth proportional to 157,516.13, 217,369.41 and 85,894.67 is: 118,533.09
Step by Step Solution
- Step 1: Write the proportion equation
157,516.13 : 217,369.41 = 85,894.67 : x - Step 2: Convert to fraction form
157,516.13/217,369.41 = 85,894.67/x - Step 3: Cross multiply
157,516.13x = 217,369.41 × 85,894.67 - Step 4: Simplify right side
157,516.13x = 18,670,873,740.04 - Step 5: Solve for x
x = 18,670,873,740.04/157,516.13 - Step 6: Final answer
x = 118,533.09
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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.