Finding the Fourth Proportional to 154,465.41, 213,151.95 and 86,470.92
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Solution
The fourth proportional to 154,465.41, 213,151.95 and 86,470.92 is: 119,324.09
Step by Step Solution
- Step 1: Write the proportion equation
154,465.41 : 213,151.95 = 86,470.92 : x - Step 2: Convert to fraction form
154,465.41/213,151.95 = 86,470.92/x - Step 3: Cross multiply
154,465.41x = 213,151.95 × 86,470.92 - Step 4: Simplify right side
154,465.41x = 18,431,445,216.29 - Step 5: Solve for x
x = 18,431,445,216.29/154,465.41 - Step 6: Final answer
x = 119,324.09
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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.