Finding the Fourth Proportional to 107,985.24, 162,027.09 and 55,431.66
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Solution
The fourth proportional to 107,985.24, 162,027.09 and 55,431.66 is: 83,172.76
Step by Step Solution
- Step 1: Write the proportion equation
107,985.24 : 162,027.09 = 55,431.66 : x - Step 2: Convert to fraction form
107,985.24/162,027.09 = 55,431.66/x - Step 3: Cross multiply
107,985.24x = 162,027.09 × 55,431.66 - Step 4: Simplify right side
107,985.24x = 8,981,430,563.67 - Step 5: Solve for x
x = 8,981,430,563.67/107,985.24 - Step 6: Final answer
x = 83,172.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.