Finding the Fourth Proportional to 160,558.09, 221,360.12 and 138,137.92
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Solution
The fourth proportional to 160,558.09, 221,360.12 and 138,137.92 is: 190,449.61
Step by Step Solution
- Step 1: Write the proportion equation
160,558.09 : 221,360.12 = 138,137.92 : x - Step 2: Convert to fraction form
160,558.09/221,360.12 = 138,137.92/x - Step 3: Cross multiply
160,558.09x = 221,360.12 × 138,137.92 - Step 4: Simplify right side
160,558.09x = 30,578,225,303.66 - Step 5: Solve for x
x = 30,578,225,303.66/160,558.09 - Step 6: Final answer
x = 190,449.61
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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.