Finding the Fourth Proportional to 157,686.50, 217,607.37 and 101,174.42
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Solution
The fourth proportional to 157,686.50, 217,607.37 and 101,174.42 is: 139,620.70
Step by Step Solution
- Step 1: Write the proportion equation
157,686.50 : 217,607.37 = 101,174.42 : x - Step 2: Convert to fraction form
157,686.50/217,607.37 = 101,174.42/x - Step 3: Cross multiply
157,686.50x = 217,607.37 × 101,174.42 - Step 4: Simplify right side
157,686.50x = 22,016,299,447.48 - Step 5: Solve for x
x = 22,016,299,447.48/157,686.50 - Step 6: Final answer
x = 139,620.70
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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.