Finding the Fourth Proportional to 159,903.99, 220,658.00 and 87,292.40
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Solution
The fourth proportional to 159,903.99, 220,658.00 and 87,292.40 is: 120,458.31
Step by Step Solution
- Step 1: Write the proportion equation
159,903.99 : 220,658.00 = 87,292.40 : x - Step 2: Convert to fraction form
159,903.99/220,658.00 = 87,292.40/x - Step 3: Cross multiply
159,903.99x = 220,658.00 × 87,292.40 - Step 4: Simplify right side
159,903.99x = 19,261,764,859.45 - Step 5: Solve for x
x = 19,261,764,859.45/159,903.99 - Step 6: Final answer
x = 120,458.31
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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.