Finding the Fourth Proportional to 171,862.84, 257,760.91 and 86,450.95
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Solution
The fourth proportional to 171,862.84, 257,760.91 and 86,450.95 is: 129,659.65
Step by Step Solution
- Step 1: Write the proportion equation
171,862.84 : 257,760.91 = 86,450.95 : x - Step 2: Convert to fraction form
171,862.84/257,760.91 = 86,450.95/x - Step 3: Cross multiply
171,862.84x = 257,760.91 × 86,450.95 - Step 4: Simplify right side
171,862.84x = 22,283,675,542.36 - Step 5: Solve for x
x = 22,283,675,542.36/171,862.84 - Step 6: Final answer
x = 129,659.65
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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.