Finding the Fourth Proportional to 143,718.06, 198,332.99 and 82,474.23
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Solution
The fourth proportional to 143,718.06, 198,332.99 and 82,474.23 is: 113,815.62
Step by Step Solution
- Step 1: Write the proportion equation
143,718.06 : 198,332.99 = 82,474.23 : x - Step 2: Convert to fraction form
143,718.06/198,332.99 = 82,474.23/x - Step 3: Cross multiply
143,718.06x = 198,332.99 × 82,474.23 - Step 4: Simplify right side
143,718.06x = 16,357,360,221.48 - Step 5: Solve for x
x = 16,357,360,221.48/143,718.06 - Step 6: Final answer
x = 113,815.62
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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.