Finding the Fourth Proportional to 106,689.29, 160,042.11 and 31,803.71
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Solution
The fourth proportional to 106,689.29, 160,042.11 and 31,803.71 is: 47,708.00
Step by Step Solution
- Step 1: Write the proportion equation
106,689.29 : 160,042.11 = 31,803.71 : x - Step 2: Convert to fraction form
106,689.29/160,042.11 = 31,803.71/x - Step 3: Cross multiply
106,689.29x = 160,042.11 × 31,803.71 - Step 4: Simplify right side
106,689.29x = 5,089,932,854.23 - Step 5: Solve for x
x = 5,089,932,854.23/106,689.29 - Step 6: Final answer
x = 47,708.00
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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.