Finding the Fourth Proportional to 157,363.94, 217,162.26 and 85,743.98
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Solution
The fourth proportional to 157,363.94, 217,162.26 and 85,743.98 is: 118,326.70
Step by Step Solution
- Step 1: Write the proportion equation
157,363.94 : 217,162.26 = 85,743.98 : x - Step 2: Convert to fraction form
157,363.94/217,162.26 = 85,743.98/x - Step 3: Cross multiply
157,363.94x = 217,162.26 × 85,743.98 - Step 4: Simplify right side
157,363.94x = 18,620,355,392.38 - Step 5: Solve for x
x = 18,620,355,392.38/157,363.94 - Step 6: Final answer
x = 118,326.70
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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.