Finding the Fourth Proportional to 171,852.84, 257,745.87 and 86,440.94
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Solution
The fourth proportional to 171,852.84, 257,745.87 and 86,440.94 is: 129,644.61
Step by Step Solution
- Step 1: Write the proportion equation
171,852.84 : 257,745.87 = 86,440.94 : x - Step 2: Convert to fraction form
171,852.84/257,745.87 = 86,440.94/x - Step 3: Cross multiply
171,852.84x = 257,745.87 × 86,440.94 - Step 4: Simplify right side
171,852.84x = 22,279,793,995.19 - Step 5: Solve for x
x = 22,279,793,995.19/171,852.84 - Step 6: Final answer
x = 129,644.61
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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.