Finding the Fourth Proportional to 159,324.21, 219,841.65 and 91,328.67
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Solution
The fourth proportional to 159,324.21, 219,841.65 and 91,328.67 is: 126,018.80
Step by Step Solution
- Step 1: Write the proportion equation
159,324.21 : 219,841.65 = 91,328.67 : x - Step 2: Convert to fraction form
159,324.21/219,841.65 = 91,328.67/x - Step 3: Cross multiply
159,324.21x = 219,841.65 × 91,328.67 - Step 4: Simplify right side
159,324.21x = 20,077,845,505.11 - Step 5: Solve for x
x = 20,077,845,505.11/159,324.21 - Step 6: Final answer
x = 126,018.80
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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.