Finding the Fourth Proportional to 157,212.67, 216,953.16 and 85,592.07
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Solution
The fourth proportional to 157,212.67, 216,953.16 and 85,592.07 is: 118,116.88
Step by Step Solution
- Step 1: Write the proportion equation
157,212.67 : 216,953.16 = 85,592.07 : x - Step 2: Convert to fraction form
157,212.67/216,953.16 = 85,592.07/x - Step 3: Cross multiply
157,212.67x = 216,953.16 × 85,592.07 - Step 4: Simplify right side
157,212.67x = 18,569,470,057.44 - Step 5: Solve for x
x = 18,569,470,057.44/157,212.67 - Step 6: Final answer
x = 118,116.88
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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.